An elastic ball of mass m falls from a height h on an Aluminium disc of area A floating in a mercury pool. If the collision is perfectly elastic, the momentum transferred to the disc is :

A molecule of mass 'm' collide with a wall of container in normal direction with a velocity c. if the collision is perfectly elastic, then the change in momentum of the molcules is

A ball is allowed to fall from a height of 8cm, if the ball is perfectly elastic, how much it rise after rebound-

Two balls of equal masses m each undergo oblique collision. If colision is perfectly elastic, then angle between their velocities after collision is

Two balls of equal masses m each undergo oblique collision. If colision is perfectly elastic, then angle between their velocities after collision is

Two balls each of mass 2kg (one at rest) undergo oblique collision is perfectly elastic, then the angle between their velocities after collision is

Two ball bearings of mass m each moving in opposite directions with same speed v collide head on with each other. If the collision is perfectly elastic, what will be the outcome of the collision ?

A point mass m collides with a disc of mass m and radius R resting on a rough horizontal surface as shown . Its collision is perfectly elastic. Find angular velocity of the disc after pure rolling starts

A ball of mass m moving horizontally at a speed v collides with the bob of a simple pendulum at rest. The mass of the bob is also m. If the collision is perfectly elastic and both balls sticks, the height to which the two balls rise after the collision will be given by: