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If the force acting on the body is zero its momentum will be

As the external force acting on it is zero, its linear momentum will remain constant, that is, zero. p 1 = m 1 v 1 = (200 g) × (12 m/s), towards the east 5. Two equal force acting in opposite directions are called unlike parallel forces. 6. If the resultant force of three force acting on body is zero then the forces are called balanced forces. 7 If the force acting on the body is zero.Its momentum is) Zero(b) Constant(c) Infinite(d) None of the - Brainly.in If the force acting on the body is zero.Its momentum is) Zero(b) Constant(c) Infinite(d) None of the above​ Get the answers you need, now Consistent with the first law, the time derivative of the momentum is non-zero when the momentum changes direction, even if there is no change in its magnitude; such is the case with uniform circular motion. The relationship also implies the conservation of momentum: when the net force on the body is zero, the momentum of the body is constant No, if the net force acting on a body be zero, then the body won't necessarily be in the rest position. The situation of the net force equal to zero is impossible in reality. When the net force of the body is equal to zero, it implies that the body cannot be accelerated. This follows from Newton's second law of motion

when the net force acting on it is zero, and thus the momentum of such systems is conserved. The momentum of a body remains constant if the net force acting on it is zero. Discussion Momentum is not conserved in general, because when we apply a force, the momentum changes. Linear Momentum Equation 6-5 The conservation of momentum principle stated that for a system, the total momentum remains constant provided no external resultant force acts on the system. Thus, the momentum of an isolated system remains constant. Chapter 13, Problem 3P is solved

If the force acting on a body is zero its momentum i

  1. If no external force acts on a system of particles, then the centre of mass will not move in any direction
  2. considered, the unbalanced force acting on the auto is a. zero. b. southward. c. northward. d. downward. e. upward. d. acceleration. A constant net force acting on an object that is The angular momentum of a body is constant if the a. net torque is zero. b. net force is constant. c. net torque is constant. d. net force is zero
  3. a. Momentum is conserved for any system when the total change in momentum is not equal to zero. b. Momentum is conserved for any system when a constant nonzero force is acting on the system. c. Momentum is always conserved for any system. d. Momentum is conserved for any system when the net force acting on the system is equal to zero
  4. Force acting on a body varies with time as shown below. if initial momentum of the body is p , then the time taken by the body to retain its momentum p - 548661 sauravshil6 sauravshil6 03.09.2018 Physics Secondary School answere
  5. MCQ Questions for Class 9 Science: Ch 9 Force and Laws of Motion. 1. A plate, a ball and a child all have the same mass. The one having more inertia is the. 2. The inertia of an object tends to cause the object. 3. The rate of change of momentum with respect to time is measured in. 4
  6. However, the force acted in a balanced way results in equal magnitude but opposite direction. As a result, the net effect cancels out. That is why; an object does not move in case of the balanced force applied, and hence the velocity remains zero. It implies that momentum will also be zero as momentum = mass * velocity
  7. Initially the body was at rest. The linear momentum of the body is thus p = mu = 0. The body breaks due to internal forces. As the external force acting on it is zero, its linear momentum will remain constant, that is, zero. p 1 = m 1 v 1 = (200 g) × (12 m/s), towards the east

If there are no external forces acting on the body, then the rate of change of momentum of ball A, during the collision will be = (m₁ (v₁ - u₁))/t and similarly the rate of change in momentum of ball B = (m₂ (v₂ - u₂))/t Let F₁₂ be the force exerted by ball A on B and F₂₁ be the force exerted by ball B on A The velocity of the body in any direction is zero. No external force is acting on the body. No work is done on the body. The number of heartbeats of a person at rest in one hour, to the nearest order of magnitude i If the forces acting on an object are balanced, the resultant force is zero Examples of objects with non-uniform motion Newton's First Law can also be used to explain the movement of objects. A rigid body is said to be in mechanical equilibrium when both its linear momentum and angular momentum remain constant. When the linear momentum remains constant, the net force acting on the body is zero. In this condition, the body is said to be in translational equilibrium

The zero force related to zero acceleration is not a property of the object, it is a statement about the forces acting on the body.That is your title should not read has no force but is subject to no net force.. If a body has a non-zero, but constant, velocity then we know that the total of all the forces applied to it is zero (from Newton's Laws) The forces are equal. According to Newton's first law, if the net force is zero, the velocity is constant If the net force acting on a body be zero , will it remain necessarily at rest ? Watch 1 minute video. Updated On: 13-6-2020. To keep watching this video solution for FREE, Download our App. Join the 2 Crores+ Student community now! Watch Video in App. This browser does not support the video element It does not allow us to quantify the force and acceleration of a body. The acceleration is the rate of change in velocity; it is caused only by an external force acting on it. The second law of motion states that the net force on an object is equal to the rate of change of its linear momentum. Linear Momentum

The momentum is constant if no external forces act on a closed particle system. Internal forces can change the linear momentum of portions of the system, but they cannot change the total linear momentum of the entire system. Isolated: the net external force acting on the system is zero. If it is no If the net force acting on an object is zero, then it means that the object's velocity is constant and the object isn't speeding up or slowing down. That is, there is no acceleration on an object with zero net force. Force is not required for an object to continue moving or staying at a state of rest. It is necessary for force to act on any. Using the definition of impulse, the change in momentum of car 1 is given by Δp 1 = F 1 Δt, where F 1 is the force on car 1 due to car 2, and Δt is the time the force acts (the duration of the collision). Intuitively, it seems obvious that the collision time is the same for both cars, but it is only true for objects traveling at ordinary speeds Forces inside system third law force pairs torque int sum =0 The only torques that can change the angular momentum of a system are the external torques acting on a system. The net external torque acting on a system of particles is equal to the time rate of change of the system's total angular momentum L Summary. The law of conservation of momentum says that the momentum of a closed system is constant in time (conserved). A closed (or isolated) system is defined to be one for which the mass remains constant, and the net external force is zero. The total momentum of a system is conserved only when the system is closed

If the force acting on the body is zero

If a person pushed you from one side and another person pushed you equally hard from the other side and the forces were perfectly lined up to oppose each other, then the net force on you is zero and you would not move. Now in practice, although th.. 5. Two equal force acting in opposite directions are called unlike parallel forces. 6. If the resultant force of three force acting on body is zero then the forces are called balanced forces. 7. Torque is a scalar quantity. 8. Moment of couple = Force × ⊥r distance between line of action of forces 9 If the force acting on the body is zero.Its momentum is) Zero(b) Constant(c) Infinite(d) None of the above Get the answers you need, now! ApexRangerSiddu ApexRangerSiddu 07.10.2020 Physics Secondary School answered If the force acting on the body is zero.Its momentum is ) Zero Step-by-step solution:100 % ( 9 ratings)for this solution. The conservation of momentum principle stated that for a system, the total momentum remains constant provided no external resultant force acts on the system. Thus, the momentum of an isolated system remains constant. Chapter 13, Problem 3P is solved

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Here, the sum is of all external forces acting on the body, where m is its mass and [latex]{\mathbf{\overset{\to }{a}}}_{\text{CM}}[/latex] is the linear acceleration of its center of mass (a concept we discussed in Linear Momentum and Collisions on linear momentum and collisions). In equilibrium, the linear acceleration is zero. If we set the acceleration to zero in Figure, we obtain the. 1.) If the momentum of a single particle is zero, its kinetic energy may not be zero. 2.) The linear momentum of an object is proportional to the mass of the object. 3.) The momentum of an isolated system is always conserved no matter what kind of force is acting inside the system. 4. Thus the first three terms on the left hand side of the x-momentum equation are zero. The only other force acting on the control surface is the force of the ground acting on the platform, as shown in the sketch. The direction of this force is assumed to act to the right; if this is wrong, the result will be negative Principle of Conservation of Linear Momentum and its Applications If the net external force acting on a system of bodies is zero, then the momentum of the system remains constant. This is the basic principle of conservation of linear momentum. According to Newton's second la No. If resultant force acting on the body is zero, the body will move with constant velocity or remain at rest. Zero; Question 3. A man weighs 70 kg. He stands on a weighing scale in a lift which is moving. upward with a uniform speed of 10 m/s. downward with an uniform acceleration of 5 m/s 2. upward with an uniform accelerate of 5 m/s 2.

if force acting on a body is zero then its momentum is

Video: If The Net Force Acting On A Body Be Zero, Then Will The

E) both kinetic energy and momentum are conserved. 7.6 If a body moves in such a way that its linear momentum is constant, then A) its kinetic energy is zero. B) the sum of all the forces acting on it must be zero. C) its acceleration is greater than zero and is constant The external force acting on the system is zero, the total momentum is conserved. Assume that the final velocity of the objects points in the +x-direction. Before the collision the velocity vector of both objects makes an angle θ with the x-axis as shown. Details of the calculation: p 1x + p 2x = p fx = p f, p 1y + p 2y = 0

If the net force acting on an object is zero, then the linear momentum is constant. In an elastic collision (such as a superball hitting and rebounding from the ground), no kinetic energy is lost. All of that energy is still in the object, so we say that energy was conserved Every body continues to be in its state of rest or of uniform motion in a straight line unless compelled by an unbalanced external force. It is simply expressed as if the net external force on a body is zero, its acceleration is zero. Acceleration can be non-zero only if there is a net external force on the body

While the gymnast is in the air the only force acting on her body is gravity (assuming air resistance is negligible). The force of gravity exerts no torque about her center of mass. Therefore the angular momentum of the gymnast is conserved about her center of mass. This allows for an interesting analysis regarding her rotation while in the air Therefore, a force of 2550 N must act on the vehicle in a direction opposite to that of its motion. 9. What is the momentum of an object of mass m, moving with a velocity v? (a) (mv) 2 (b) mv 2 (c) ½ mv 2 (d) mv. Solution. Since momentum is defined as the product of mass and velocity, the correct answer is (d), mv. 10 Force acting on a body is directly proportional to the acceleration produced in the body. its momentum has to be reduced to zero. Now, when a cricket player moves back his hands on catching the fast ball, then the time taken to reduce the momentum of the ball is increased. So, the rate of change of momentum of ball is decreased and hence a.

  1. The sum of the external force is zero. Internal: left block and spring, right block and spring. The resulting forces are the elastic force acting on each block and on the spring. Because these forces are internal will not change the total momentum of the system and will not change the motion of the center of mass
  2. In a collision, the net impulse experienced by an object is equal to its momentum change. A force of 100 N acting for 0.1 seconds would provide an equivalent impulse as a force of 5 N acting for 2.0 seconds
  3. If the net force acting on an object is zero, its linear momentum is constant (conservation of linear momentum). The total linear momentum p of a system of particles is defined as the vector sum of the individual linear momenta. This expression can be rewritten as. where M is the total mass of the system. We conclude that The linear momentum.
  4. of momentum. Example calculation. A 1,500 kg car accelerates from rest to a velocity of 30 m/s. This takes 20 seconds. Calculate the force acting on the car

Conservation of momentum. Newton's second law, in its most general form, says that the rate of a change of a particle's momentum p is given by the force acting on the particle; i.e., F = dp/dt.If there is no force acting on the particle, then, since dp/dt = 0, p must be constant, or conserved. This observation is merely a restatement of Newton's first law, the principle of inertia: if. The force causes the linear momentum to change The net force acting on a body is the time rate of change of its linear momentum t dd mm dt vp a L t W ' 6 ' pv m I F p ' ' net external force acting on a system is ZERO L f tot 0 ext d dt ¦ L 2. February 16, 202 Chapter 9. The Kinetic of Rotation: In Chapter 4, the kinetic of straight line motion was discussed where ΣF = Ma was the kinetic equation. ΣF was the net force or the cause of motion, M or mass was treated as a measure of resistance toward straight line motion, and a the acceleration caused by ΣF.. Here, in Chapter 9, the kinetic of rotation will be studied where ΣT = Iα is the kinetic. This force is due to resistance of air and also due to friction between the ball and the ground. Question 5. A truck starts from rest and rolls down a hill with a constant acceleration. It travels a distance of 400 m in 20 s. Find its acceleration. Find the force acting on it if its mass is 7 tonnes. (Hint: 1 tonne = 1000 kg) Solution: Question 6

Solved: Express the conservation of momentum principle

  1. Newton's First Law: If no net force acts on an object it remains at rest, if initially at rest, or it maintains its velocity if initially in motion.; Newton's Second Law: F = ma: The net force F acting on an object with mass m and acceleration a is given by this expression.; Newton's first law is a special case of Newton's second law when F = 0. Since m is not zero, acceleration must be zero
  2. 6.1 Momentum and Impulse 161 with the same direction as the object's velocity. Its components are given in two di-mensions by p x mv x p y mv y where p x is the momentum of the object in the x-direction and p y its momentum in the y-direction.Changing the momentum of an object requires the application of a force. This is, in fact, how Newton originally stated his second law of motion
  3. The change in the angular momentum of the particle can be obtained by differentiating the equation for l with respect to time. We conclude that. This equation shows that if the net torque acting on the particle is zero, its angular momentum will be constant. Example Problem 12-3. Figure 12.9 shows object P in free fall

The force acting on the body can be solved by using Newton's 2nd law of motion. The formula is Force = mass * acceleration. The mass = 4kg while the value of the acceleration a = (v2 - v1) / t. Solving for the acceleration a a = (v2 - v1) / t a =. 9.4 Linear momentum DEFINITION: • m is the mass of the particle and v is its velocity. • The time rate of change of the momentum of a particle is equal to the net force acting on the particle and in the direction of the net force. • Manipulating this equation: Newton's 2nd La

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The force acting on an object is equivalent to A its change of momentum. B the impulse it receives per second. C the energy it gains per second. D its acceleration per metre. (Total 1 mark) Q3. A ball of mass 2.0 kg, initially at rest, is acted on by a force F which varies with time t as shown by the graph. What is the velocity of the ball. The force F acting on a particle of mass m is indicated by the force-time graph as shown below. The climate change in momentum of the particle over the time interval from zero to 8 s is, 24 N The total linear momentum of the matter is ∫ ∫ Δ Δ = V m ρvdv vdm. By the mean value theorem (see Appendix A to Chapter 1, §1.B.1), this equals vΔm, where v is the velocity at some interior point. Similarly, the body force acting on the matter is dv v V ∫ = Δ Δ b b, where b is the body force (per unit volume) acting at some.

Impulse is a term that quantifies the overall effect of a force acting over time. It is conventionally given the symbol and expressed in Newton-seconds. For a constant force, . As we saw earlier, this is exactly equivalent to a change in momentum . This equivalence is known as the impulse-momentum theorem Question 1. The mass of a body which is equal to the ratio of the force acting on a body to the acceleration produced in the body is. (a) the gravitational mass. (b) the electromagnetic mass. (c) the internal mass. (d) the inertial mass. Answer. Answer: (d) the inertial mass. Question 2 Equation (48) means that any change in the angular momentum of a particle must be produced by a force that is not acting along the same direction as r. One particularly important application is the solar system. Each planet is held in its orbit by its gravitational attraction to the Sun, a force that acts along the vector from the Sun to the. (c) the total force acting on it need not be zero but the torque on it is zero. (d) neither the force nor the torque need to be zero. 5.3 A cricket ball of mass 150 g has an initial velocity u ij=+(3 4 )msˆˆ −1 and a final velocity v ij=− +(3 4 )msˆˆ −1 after being hit. The change in momentum (final momentum-initial momentum) is (in.

Bouncing ball physics is an interesting subject of analysis, demonstrating several interesting dynamics principles related to acceleration, momentum, and energy. These principles will be discussed. Almost everybody, at some point in their lives, has bounced a rubber ball against the wall or floor and observed its motion MOMENTUM and COLLISIONS What one man can invent another can discover Arthur Conan Doyle . Newton 's 2 nd law of motion for a single particle can be written,; where we have assumed that the mass of the particle is independent of time and we define the momentum of the particle, p = mv.Momentum is a clearly a vector quantity, with units, kg.m /s (SI) or slug.ft /s (British) The greater the mass of a body, the greater will be its inertia and the greater will be its resistance to changes to its state of motion or rest. A body at rest implies that the net resultant force applied on the body is zero. However, it is not necessarily that there is no force acting on the body 1. If a body moves in such a way that its linear momentum is constant, then A) its kinetic energy is zero. B) the sum of all the forces acting on it must be zero. C) its acceleration is greater than zero and is constant. D) its center of mass remains at rest. E) the sum of all the forces acting on the body is constant and nonzero. 2

If net external force is zero, then the linear momentum of

  1. (b) No The initial momentum is not lost unless an external force acts on the system No force is mentioned here, so we assume that there is no external force acting on the system. and the momentum of the system is conserved in all collisions. Chapter 9 Linear Momentum And Collisions Q.17CQ Lifting one foot into the air, you balance on the other.
  2. resultant force acting on the particle. Since this is a vector equation, it must be satisfied for each component independently. Thus, if the force acting on a particle is such that the component of its moment along a given direction is zero, then the component of the angular momentum along this direction will remain constant
  3. The change in its momentum due to any other force present during the collision can be neglected. That is, the force in the expression I \(=\triangle \mathrm {p}=\overline{\mathrm {F}}\triangle t\) can be assumed to be the impulsive force only The neglected forces present during the collision time are external to the two-body system, whereas the.
  4. Newton's Third Law: If body A exerts a force on body B then body B will exert an equal but opposite force on body A. Momentum: The momentum of an object is defined as its mass multiplied by its velocity. Momentum of a System: The total momentum of a system is the sum of the momenta of each of the objects in the system
  5. A rigid body is in equilibrium if the sum of all forces acting on it gives a resultant force F r and couple M r both equal to zero. Notice that in that case, the resultant couple will be zero with respect to any point, because moving the resultant force F r = 0 to any other point does not introduce any additional moment
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Ch 3 Force and Motion Flashcards Quizle

If a body moves in such a way that its linear momentum is constant, then . A) its kinetic energy is zero. B) the sum of all the forces acting on it must be zero. C) its acceleration is greater than zero and is constant. D) its center of mass remains at rest. E) the sum of all the forces acting on the body is constant and nonzero. Answer: B . 13 force acting on the body is zero done clear. D) All of the above done clear. View Solution play_arrow; question_answer27) If a light body and a heavy body have equal momentum, then [NDA] A) the lighter body has greater energy than the heavier body done.

Physics 101 Chapter 7 Flashcards Quizle

  1. When a body is accelerating, the resultant force acting on it is equal to its A. change of momentum. B. rate of change of momentum. C. acceleration per unit of mass. D. rate of change of kinetic energy
  2. A. A force acting on a body is proportional to the mass of the body. B. The rate of change of momentum of a body is equal to the net external force acting on the body. C. The momentum of a body is proportional to the net external force acting on the body. D. A force acting on a body is proportional to the acceleration of the body
  3. Force acting on a body is related to the mass of the body and the variation of its velocity with time. Force can also occur between bodies that are physically separated (Ex: gravitational, electrical, and magnetic forces) force, moment, momentum. Vectors y x z j i k i, j, k - unit vectors A Vector V can be written as: V= V

Force acting on a body varies with time as shown below

A type of force acting on a body caused by the friction between the body and the ground. A. load; B. shear; C. bear; The moment of force is zero when. A. the applied force is zero. the net force on a particle is proportional to the time rate of change of its linear momentum. This is known as Newton's _____ of motion. A. Zeroth Law. The force acting on an object is equivalent to € A its change of momentum. B the impulse it receives per second. C the energy it gains per second. D its acceleration per metre. (Total 1 mark) 13 Two forces of 6 N and 10 N act at a point. Which of the following could not be the magnitude of the result? € A 16 N B 8 N C 5 N D 3 N (Total 1. 24) What is the momentum of a body of 2 kg at its highest point, when thrown with a velocity of 15 m/s at an angle of of 70 o with the horizontal? a. 9.23 kg ms -1 b. 10.26 kg ms -

MCQ Questions for Class 9 Science: Ch 9 Force and Laws of

A reaction force at a point on a surface can be resolved into two components, a normal force (perpendicular to the surface), and a tangential force (tangent to the surface at the point of contact). The latter is called the force due to friction. The force due to friction acts on a body in a direction to oppose its motion Kinetic energy is created when a force does work accelerating a mass and increases its speed. Just as for potential energy, we can find the kinetic energy created by figuring out how much work the force does in speeding up the body. Remember that a force only does work if the body the force is acting on moves in the direction of the force If the intial velocity is zero then the force acting upon, it will also be zero path when the net force acting on it is zero. Therefore, a body tends to pre-serve its state of inertia. Newton's second law states that the acceleration of a body is proportional to the net force acting on it and is inversely propor-tional to its mass.Newton's third law states that when a body exerts a force on a second body, the second. c. The gravitational force acting on all objects in the same locality is the same. 25. If a body is moving at constant velocity along a straight line, it must have: a. A constant net force acting upon it b. Constant non-zero acceleration c. Constant speed d. None of the above

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Force and Momentum - Definition and Differenc

The Moment of a force is a measure of its tendency to cause a body to rotate about a specific point or axis. This is different from the tendency for a body to move, or translate, in the direction of the force. In order for a moment to develop, the force must act upon the body in such a manner that the body would begin to twist The momentum of the ball itself is not conserved because the ball slows down as it rises. Mechanical energy, the sum of kinetic and gravitational potential energies, is conserved in the absence of air resistance. E) both its momentum and its kinetic energy are conserved - incorrect. See rationale for A and B. 2 1. When the sum of the forces acting on a particle is zero, its velocity is constant; 2. The sum of forces acting on a particle of constant mass is equal to the product of the mass of the particle and its acceleration; 3. The forces exerted by two particles on each other are equal in magnitude and opposite in direction. Isaac Newton on a bad. of change of its momentum is zero. From the derivative form of the Momentum Principle we conclude that the net force acting on the block must be zero. ? What objects in the surroundings exert forces on the block? The spring pulls up and the Earth pulls down. ? Apply the derivative form of the Momentum Principle to find the stretch

Force and Laws of Motion Class 9 Extra Questions Science

Find the force acting on the particle as a function of s. Free solution >> 1.121. A body of mass m was slowly hauled up the hill (Fig. 1.29) by a force F which at each point was directed along a tangent to the trajectory. Find the work performed by this force, if the height of the hill is h, the length of its base l, and the coefficient of. In many equilibrium situations, one of the forces acting on the body is its weight. In free-body diagrams, the weight vector is attached to the center of gravity of the body. For all practical purposes, the center of gravity is identical to the center of mass, as you learned in Linear Momentum and Collisions on linear momentum and collisions. Only in situations where a body has a large spatial. A force acts for 10 s on a stationary body of mass 100 kg, after which the force ceases to act. The body moves through a distance of 100 m in the next 5 s. Calculate: ( i ) The velocity acquired by the body, (ii) The acceleration produced by the force and (iii) The magnitude of the force Force: an agent or influence that, if applied to a free body results chiefly in an acceleration of the body and sometimes in elastic deformation and other effects. Every day we deal with forces of one kind or another. A pressure is a force. The earth exerts a force of attraction for all bodies or objects on its surface

Class 9 Science Chapter 9 Important Question Force and

The inability of the body to change its state is: (a) force (b) momentum (c) acceleration (d) inertia Answer: (d) inertia. Question 16. Two or more forces of equal or unequal magnitude acting along the same direction, parallel to each other are called _____. (a) like parallel forces (b) unlike parallel forces (c) resultant force (d) balanced. Chapter 8 Torque and Angular Momentum Review of Chapter 5 the net force acting on it must be equal to zero. (Newton's first law.) However, that condition is not Equilibrium in the Human Body Forces act on the structures in the body. Example 8.10 The deltoid muscle exerts F Conservation of plain old momentum, p, can be thought of as the greatly expanded and modified descendant of Galileo's original principle of inertia, that no force is required to keep an object in motion.The principle of inertia is counterintuitive, and there are many situations in which it appears superficially that a force is needed to maintain motion, as maintained by Aristotle which states that the total force acting on a particle is equal to the time rate of change of its linear momentum. Principle of Linear Impulse and Momentum Imagine now that the force considered acts on the particle between time t 1 and time t 2. Equation (1) can then be integrated in time to obtain t 2 t 1 F dt = t 2 t 1 L˙ dt = L 2 − L 1. A) zero B) decreasing C) increasing D) constant, but not zero When the sum of all the forces acting on a block on an inclined plane is zero, the block 70 O res B) ) D) the same inertia and a smaller magnitude of momentum the same inertia and the same magnitude of momentum greater inertia and a smaller magnitude of mome

Here, the sum is of all external forces acting on the body, where m is its mass and a → CM a → CM is the linear acceleration of its center of mass (a concept we discussed in Linear Momentum and Collisions on linear momentum and collisions). In equilibrium, the linear acceleration is zero. If we set the acceleration to zero in Equation 12.1, we obtain the following equation A particle moves in the xy plane under the action of a force F such that the value of its linear momentum (P) at any time t is, P 2 cost, P —2 sint The angle e between P and F at that time t will be - (A) 00 (B) 300 (C) 900 (D) 1800 The linear momentum P of a body moving in one dimension varies with time according to the equatio (ii) momentum versus mass when velocity is constant. Answer: Momentum The quantity of motion possessed by a moving body is known as momentum of the body. Momentum of an object of mass m moving with a velocity v is the product of it. It is denoted by p p = mv Its SI unit is kg-ms-1. As from Newton's llnd law, rate of change of momentum is.