Two identical balls `A` and `B` are released from the position shown in Fig. They collide elastically with each other on the horizontal portion. The ratio of heights attained by `A` and `B` after collision is (neglect friction)

A small ball of mass m collides elastically with a simple pendulum with bob of mass ma at rest. The macimum height attained by the bob after collision is

A ball is released from point A as shown in figure. The ball leaves the track at B. All surfaces are smooth. If track makes an angle 30^(@) with horizontal at B, then maximum height attained by ball will be

In the arrangement shown in Fig. the ball and the block have the same mass m=1 kg each, theta=60^(@) and length l = 2.50m . Coefficient of friction between the block and the floor is 0.5 . When the ball is released from the position shown in Fig. it collides with the block and the block stops after moving a distance 2.50 m . The velocity of block just after collision is

In the arrangement shown in Fig. the ball and the block have the same mass m=1 kg each, theta=60^(@) and length l = 2.50m . Coefficient of friction between the block and the floor is 0.5 . When the ball is released from the position shown in Fig. it collides with the block and the block stops after moving a distance 2.50 m . The coefficient of restitution for collision between the ball and the block is

Two balls A and B of angular velocities omega_(A) and omega_(B) collide with each other. Then, after collision

Two identical balls each moving with speed v at right angle to each other collide perfectly inelastically. Their speed after collision is

Two identical bodies moving in opposite direction with same speed, collide with each other. If the collision is prefectly elastic then

The ball is released when the string is horizontal. The collision between the ball and the block is head - on elastic. The velocities of the ball and the block immediately after collision