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Center of Mass, Momentum and Collision — BITSAT Physics PYQs

15 previous year questions from Center of Mass, Momentum and Collision with answers and solutions. Numbered list, year tags, and one-tap solutions — built for serious JEE / NEET practice.

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Center of Mass, Momentum and Collision — BITSAT Physics PYQs

A ball falling freely from a height of 4.9 ~m / s , hits a horizontal surface. If e= 3 4 , then the ball will hit the surface, second time after

Two bodies of mass 1 kg and 3 kg have position vectors i +2 j +k and -3 i -2 j + k respectively. The magnitude of position vector of centre of mass of this system will be similar t

Two bodies are having kinetic energies in the ratio 16: 9 . If they have same linear momentum, the ratio of their masses respectively is:

A particle of mass m moving with velocity v collides with a stationary particle of mass 2 ~m . After collision, they stick together and continue to move together with velocity

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 nucleus splits into two nuclear parts which have their velocity ratio equal to 2: 1 . What will be the ratio of their nuclear radius?

An object of mass 5 kg is projected with a velocity 20 m s - 1 at an angle 60 ° , to the horizontal. At the highest point of its path, the projectile explodes and breaks up in

A trolley having mass of 200 kg moves with uniform speed of 36 kmh - 1 on a frictionless track. A child of mass 20 kg runs on the trolley from one end to the other ( 10 m away) wit

Consider elastic collision of a particle of mass m moving with a velocity u with another particle of the same mass at rest. After the collision the projectile and the struck partic

A neutron moving with speed v makes a head on collision with a hydrogen atom in ground state kept at rest. The minimum kinetic energy of the neutron for which inelastic collision t

A rifle man, who together with his rifle has a mass of 100 ~kg , stands on a smooth surface and fires 10 shots horizontally. Each bullet has a mass 10 ~g and a muzzle velocity of 8

A man of mass 100 ~kg . is standing on a platform of mass 200 ~kg . which is kept on a smooth ice surface. If the man starts moving on the platform with a speed 30 ~m / sec relativ

A spring is compressed between two toy carts of mass m ₁ and m ₂ . When the toy carts are released, the springs exert equal and opposite average forces for the same time on each to

A system consists of three particles, each of mass m and located at (1,1),(2,2) and (3,3) . The co-ordinates of the centre of mass are

A particle of mass 10 ~kg moving eastwards with a speed 5 ~ms ⁻¹ collides with another particle of the same mass moving north-wards with the same speed 5 ~ms ⁻¹ . The two particles

Center of Mass, Momentum and Collision — BITSAT Physics PYQs

A ball falling freely from a height of 4.9 ~m / s , hits a horizontal surface. If e= 3 4 , then the ball will hit the surface, second time after

Two bodies of mass 1 kg and 3 kg have position vectors i +2 j +k and -3 i -2 j + k respectively. The magnitude of position vector of centre of mass of this system will be similar t

Two bodies are having kinetic energies in the ratio 16: 9 . If they have same linear momentum, the ratio of their masses respectively is:

A particle of mass m moving with velocity v collides with a stationary particle of mass 2 ~m . After collision, they stick together and continue to move together with velocity

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 nucleus splits into two nuclear parts which have their velocity ratio equal to 2: 1 . What will be the ratio of their nuclear radius?

An object of mass 5 kg is projected with a velocity 20 m s - 1 at an angle 60 &#176; , to the horizontal. At the highest point of its path, the projectile explodes and breaks up in

A trolley having mass of 200 kg moves with uniform speed of 36 kmh - 1 on a frictionless track. A child of mass 20 kg runs on the trolley from one end to the other ( 10 m away) wit

Consider elastic collision of a particle of mass m moving with a velocity u with another particle of the same mass at rest. After the collision the projectile and the struck partic

A neutron moving with speed v makes a head on collision with a hydrogen atom in ground state kept at rest. The minimum kinetic energy of the neutron for which inelastic collision t

A rifle man, who together with his rifle has a mass of 100 ~kg , stands on a smooth surface and fires 10 shots horizontally. Each bullet has a mass 10 ~g and a muzzle velocity of 8

A man of mass 100 ~kg . is standing on a platform of mass 200 ~kg . which is kept on a smooth ice surface. If the man starts moving on the platform with a speed 30 ~m / sec relativ

A spring is compressed between two toy carts of mass m ₁ and m ₂ . When the toy carts are released, the springs exert equal and opposite average forces for the same time on each to

A system consists of three particles, each of mass m and located at (1,1),(2,2) and (3,3) . The co-ordinates of the centre of mass are

A particle of mass 10 ~kg moving eastwards with a speed 5 ~ms ⁻¹ collides with another particle of the same mass moving north-wards with the same speed 5 ~ms ⁻¹ . The two particles

An object of mass 5 kg is projected with a velocity 20 m s - 1 at an angle 60 ° , to the horizontal. At the highest point of its path, the projectile explodes and breaks up in