A ball of mass `m` moves with speed `v` and stricks a wall having infinite mass and it returns with same speed then the work done by the ball on the wall is

A ball of mass m moving with speed v towards the right strikes a wall moving towards the left with speed u . Find the change in the K.E. of the ball if the collision is elastic.

A ball of mass m collides with a wall with speed v and rebounds on the same line with the same speed. If the mass of the wall is taken as infinite, then the work done by the ball on the wall is

A ball of mass m collides with a wall with speed v and rebounds on the same line with the same speed. If the mass of the wall is taken as infinite, then the work done by the ball on the wall is

A ball of mass 'm' moves normal to a wall with a velocity 'u' and rebounde with the same speed. The change in momentum of the ball during the rebounding is

A ball of mass m strikes a rigid walJ with speed u and rebounds with the same speed. The impulse imparted to the ball by the wall is

A ball of mass m strikes a rigid walJ with speed u and rebounds with the same speed. The impulse imparted to the ball by the wall is