NEET PYQ Center of Mass, Momentum and Collision - Chapter-wise Questions with Solutions

About Center of Mass, Momentum and Collision PYQs

Center of Mass, Momentum and Collision has 243 previous year questions in the Quantrex Academy NEET UG Physics bank. The 220 questions in this list come from NEET (161), AIIMS (39) and JIPMER (20), spanning 2001 to 2026. Each question opens on its own page with the options, the correct answer and the worked solution where available.

NEET Center of Mass, Momentum and Collision PYQs with Solutions

About Center of Mass, Momentum and Collision PYQs

Questions by year (this list)

Center of Mass, Momentum and Collision questions with solutions

A frictionless circular wire of unit radius is fixed on the horizontal plane. Two point particles of unit mass start moving simultaneously from point A(θ=(π)/(2)) with identical

Bob B of mass m at rest is hanging vertically from the ceiling via a massless string of length 10 m, as shown in the figure. Point mass A of mass m travelling horizontally with

A ball of mass 0.5 kg is dropped from a height of 40 m . The ball hits the ground and rises to a height of 10 m . The impulse imparted to the ball during its collision with the

Two bodies A and B of same mass undergo completely inelastic one dimensional collision. The body A moves with velocity v_1 while body B is at rest before collision. The velocity

Two particles A and B initially at rest, move towards each other under mutual force of attraction. At an instance when the speed of A is v and speed of B is 3 v , the speed of

A 1 ~kg object strikes a wall with velocity 1 ~ms^ -1 at an angle of 60^ ∘ with the wall and reflects at the same angle. If it remains in contact with wall for 0.1 ~s , then the

A bullet of mass m hits a block of mass M elastically. The transfer of energy is the maximum, when

A shell of mass m is at rest initially. It explodes into three fragments having mass in the ratio 2: 2: 1 . If the fragments having equal mass fly off along mutually perpendicular

Two objects of mass 10kg and 20kg respectively are connected to the two ends of a rigid rod of length 10m with negligible mass. The distance of the center of mass of the system

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R), Assertion (A): When a fire cracker (rocket) explodes in mid air, its

The distance covered by a body of mass 5 ~g having linear momentum 0.3 ~kg ~m / s in 5 ~s is:

A ball of mass 0 . 15kg is dropped from a height 10m strikes the ground and rebounds to the same height. The magnitude of impulse imparted to the ball is (g = 10m s ^ - 2 ) nearly

Three identical spheres, each of mass M, are placed at the corners of a right angle triangle with mutually perpendicular sides equal to 2m (see figure). Taking the point of

Two particles of mass 5kg and 10kg respectively are attached to the two ends of a rigid rod of length 1m with negligible mass. The centre of mass of the system from the 5kg

Assertion: There is no loss in energy in elastic collision. Reason : Linear momentum is conserved in elastic collision.

A gun applies a force F on a bullet which is given by F=(100-0.5 × 10^5 t) N . The bullet emerges out with speed 400 ~m ~s^ -1 . Then find out the impulse exerted till force on

A spacecraft of mass 100 ~kg breaks into two when its velocity is 10^4 ~m ~s^ -1 . After the break, a mass of 10 ~kg of the spacecraft is left stationary. The velocity of the

Body A of mass 4 m moving with speed u collides with another body B of mass 2 m at rest. The collision is head on and elastic in nature. After the collision the fraction of energy

Assertion : A glass ball dropped on concrete floor can easily get broken compared if it is dropped on wooden floor. Reason : On concrete floor glass ball will take less time to

A toy truck of mass 2 m elastically collides with a toy car of mass m . speed of truck is v and car is at rest. Find the velocity of car after collision.

One object of mass 20 kg is moving with speed 10 ~m / s in west direction another object of mass 10 kg is moving with 15 ~m / s in North direction. Both collide and stick

Two objects of mass m each moving with speed u~m / s collide at 90^ ∘ , then final momentum is (assume collision is inelastic)

If a ball of mass 0.1 kg hits the ground from the height of 20 m and bounce back to the same height, then find out the force exerted on the ball if the time of impact is 0.04 sec

An object flying in air with velocity (20 i +25 j -12 k ) suddenly breaks in two pieces whose masses are in the ratio 1: 5 . The smaller mass flies off with a velocity (100 i +35

A particle of mass 5 ~m at rest suddenly breaks on its own into three fragments. Two fragments of mass m each move along mutually perpendicular direction with each speed v. The

Body A of mass 4m moving with speed u collides with another body B of mass 2m at rest. The collision is head on and elastic in nature. After the collision, the fraction of energy

A gun applies a force F on a bullet which is given by F=(100-0.5 × 10^5 t) N . The bullet emerges out with speed 400 ~m ~s^ -1 . Then find out the impulse exerted till force on

Body A of mass 4 m moving with speed u collides with another body B of mass 2 m at rest. The collision is head on and elastic in nature. After the collision the fraction of energy

A spacecraft of mass 100 ~kg breaks into two when its velocity is 10^4 ~m ~s^ -1 . After the break, a mass of 10 ~kg of the spacecraft is left stationary. The velocity of the

Assertion: There is no loss in energy in elastic collision. Reason : Linear momentum is conserved in elastic collision.

Assertion : A glass ball dropped on concrete floor can easily get broken compared if it is dropped on wooden floor. Reason : On concrete floor glass ball will take less time to

A rocket is fired vertically from the ground with a resultant vertical acceleration of 10 ~m ~s^ -2 . The fuel is finished in 1 ~min and it continues to move up. What is the

A body of mass m_1 collides elastically with another body of mass m_2 at rest. If the velocity of m_1 after collision becomes 2 / 3 times its initial velocity, the ratio of their

Assertion : A rocket works on the principle of conservation of linear momentum. Reason : Higher the velocity, smaller is the pressure and vice-versa.

Three bricks each of length L and mass M are arranged as shown from the wall. The distance of the centre of mass of the system from the wall is

A bomb moving with velocity (40 i +50 j -25 k ) m s^ -1 explodes into two pieces of mass ratio 1: 4 . After explosion the smaller piece moves away with velocity (200 i +70 j +15 k

What will be the position of centre of mass of a half disc of uniform mass density as shown

Centre of mass of a uniform ring of radius R will be at a position

A moving block having mass m, collides with another stationary block having mass 4m . The lighter block comes to rest after collision. When the initial velocity of the lighter

Three bricks each of length L and mass M are arranged as shown from the wall. The distance of the centre of mass of the system from the wall is

A body of mass m_1 collides elastically with another body of mass m_2 at rest. If the velocity of m_1 after collision becomes 2 / 3 times its initial velocity, the ratio of their

Centre of mass of a uniform ring of radius R will be at a position

A rocket is fired vertically from the ground with a resultant vertical acceleration of 10 ~m ~s^ -2 . The fuel is finished in 1 ~min and it continues to move up. What is the

What will be the position of centre of mass of a half disc of uniform mass density as shown

A bomb moving with velocity (40 i +50 j -25 k ) m s^ -1 explodes into two pieces of mass ratio 1: 4 . After explosion the smaller piece moves away with velocity (200 i +70 j +15 k

Assertion : A rocket works on the principle of conservation of linear momentum. Reason : Higher the velocity, smaller is the pressure and vice-versa.

A ball impinges directly on a similar ball at rest. The first ball is brought to rest by the impact. If half of the kinetic energy is lost by impact, the value of coefficient of

Assertion : A rigid body can be elastic. Reason : If a force is applied on the rigid body, its dimensions may change.

Assertion : A particle strikes head-on with another stationary particle such that the first particle comes to rest after collision. The collision should necessarily be elastic.

A stick of length L and mass M lies on a frictionless horizontal surface on which it is free to move in any way. A ball of mass m moving with speed V collides elastically with the

Which of the following statements are correct? (i) Centre of mass of a body always coincides with the centre of gravity of the body. (ii) Centre of mass of a body is the point at

A ball impinges directly on a similar ball at rest. The first ball is brought to rest by the impact. If half of the kinetic energy is lost by impact, the value of coefficient of

Assertion : A rigid body can be elastic. Reason : If a force is applied on the rigid body, its dimensions may change.

Assertion : A particle strikes head-on with another stationary particle such that the first particle comes to rest after collision. The collision should necessarily be elastic.

Assertion : KE is conserved at every instant of elastic collision. Reason : No deformation of matter occurs in elastic collision.

If the linear momentum is increased by 50 \% , then kinetic energy will increase by

A gun of mass 10 ~kg fires 4 bullets per second. The mass of each bullet is 20 ~g and the velocity of the bullet when it leaves the gun is 300 ~m ~s^ -1 . The force required to

A sphere of mass m moving with velocity v hits inelastically with another stationary sphere of same mass. The ratio of their final velocities will be (in terms of e )

Particles of masses m, 2 m, 3 m, …, n m are placed on the same line at distances L, 2 L, 3 L, …, n L from O . The distance of centre of mass from O is

A bullet of mass 10 g moving horizontally with a velocity of 400m s ^ - 1 strikes a wooden block of mass 2 kg which is suspended by a light inextensible string of length 5 m. As a

Two identical balls A and B having velocities of 0 . 5m s ^ - 1 and - 0 . 3m s ^ - 1 , respectively, collide elastically in one dimension. The velocities of B and A after the

A rigid ball of mass, m strikes a rigid wall at 60 ^ o and gets reflected without any loss of speed as shown in the figure below. The value of impulse imparted by the wall on the

A gun of mass 10 ~kg fires 4 bullets per second. The mass of each bullet is 20 ~g and the velocity of the bullet when it leaves the gun is 300 ~m ~s^ -1 . The force required to

If the linear momentum is increased by 50 \% , then kinetic energy will increase by

Assertion : KE is conserved at every instant of elastic collision. Reason : No deformation of matter occurs in elastic collision.

A body weighing 8 g when placed in one pan and 18 g when placed on the other pan of a false balance. If the beam is horizontal when both the pans are empty, then the true weight

A ball of mass m hits the floor with a speed v making an angle of incidence θ with the normal. The coefficient of restitution is e . The speed of reflected ball and the angle of

The density of a rod having length l varies as ρ=c+d x , where x is the distance from the left end. The centre of mass is

On a frictionless surfaces, a block of mass M moving at speed v collides elastically with another block of same mass M which is initially at rest. After collision the first block

Point masses m _ 1 and m _ 2 are placed at the opposite ends of rigid rod of length L , and negligible mass. The rod is to be set rotating about an axis perpendicular to it. The

Two spherical bodies of mass M and 5M and radii R and 2R released in free space with initial separation between their centres equal to 12R. If they attract each other due to

Two particles of masses m _ 1 , m _ 2 move with initial velocities u _ 1 and u _ 2 . On collision, one of the particles get excited to higher level, after absorbing energy ε. If

Two homogeneous spheres A and B of masses m and 2 m having radii 2 a and a respectively are placed in touch. The distance of centre of mass from first sphere is

A heavy truck moving with a velocity of 60 ~km ~h^ -1 collides with a light drum at rest. If the collision be elastic, then the velocity of the drum immediately after collision

Assertion: A quick collision between two bodies is more violent than a slow collision, even when the initial and the final velocities are identical. Reason: The rate of change of

The force ‘F' acting on a particle of mass ‘m' is indicated by the force-time graph shown below. The change in momentum of the particle over the time interval from zero to 8s is: