Two identical balls collide head on. The initial velocity of one is `0.75 ms^(-1)` , while that of the other is `-0.43 ms^(-1)`. If the collision is perfectly elastic, then their respective final velocities are

A ping-pong ball strikes a wall with a velocity of 10 ms^(-1) . If the collision is perfectly elastic, find the velocity if ball after impact

A ping-pong ball strikes a wall with a velocity of 10 ms^(-1) . If the collision is perfectly elastic, find the velocity if ball after impact

A body of mass 100 gm moving with an initial velocity of 4ms^(-1) collides with another body of mass 150 gm moving in opposite direction with velocity 6 ms^(-1) . If the collision is perfectly inelastic, then after the collision,

A marble going at a speed of 2 ms^(-1) hits another marble of equal mass at rest. If the collision is perfectly elastic, then the velocity of the first marble after collision is

A steel ball of radius 2 cm is initially at rest. It is struck head on by another stell ball of radius 4 cm travelling with a velocity of 81 cm//s . If the collision is elastic their respective final velocities are

Two identical balls A and B collide head on elastically. If velocities of A and B, before the collision are +0.5 m/s and -0.3 m/s respectively, then their velocities, after the collision, are respectively