A ball of mass M strikes another smooth ball of mass m at rest. If they separate in mutually perpendicular directions, then the coefficient of impact (e) is :

A ball of mass 10 kg strikes another ball of mass 25 kg at rest. If they separated in mutually perpendicular directions then the coefficient of restitution is:

A ball A of mass 0.2 strikes another ball B of unknown mass at rest . If the ball A makes an elastic head on collision and then rebounds at one half of its original speed , then calculate the mass of ball B .

A ball of mass m moving with velocity u strikes another identical ball at rest. Find the velocities of the balls after the collision if the coefficient of restitution is e and the collision is head -on. Also , calculate the loss in K.E.

A ball of mass m_(1) , collides elastically and head on with ball of mass m_(2) at rest. Then

A ball of mass m moving at a speed v collides with another ball of mass 3m at rest. The lighter block comes to rest after collisoin. The coefficient of restitution is

A ball of mass m moving at a speed v collides with another ball of mass 3m at rest. The lighter block comes to rest after collisoin. The coefficient of restitution is

A clay ball of mass m and speed v strikes another metal ball. of same mass m, which is at rest. They stick together after collision. The kinetic energy of the system after collision is –

A ball of mass m_(1) moving with a certain speed collides elastically with another ball of mass m_(2) kept at rest . If the first ball starts moving in reversed direction after the impact then

A ball of mass m=1kg strikes a smooth horizontal floor as shown in figure. The impulse exerted on the floor is

A ball of mass m=1kg strikes a smooth horizontal floor as shown in figure. The impulse exerted on the floor is