A body of mass `10 kg` moving with a velocity of `5 ms^(-1)` hits a body of `1 gm` at rest. The velocity of the second body after collision. Assuming it to be perfectly elastic is

A body of mass 5 kg moving with a velocity 10 m/s collides with another body of the mass 20 kg at, rest and comes to rest. The velocity of the second body due to collision is

Solve the following examples: (numerical problems) A body of mass 1 kg, moving with a velocity of 4 m/s collides with a body of mass 0.5 kg moving with a velocity of 2 m/s . If the velocity of the first body after collision is 8/3 m/s , find the velocity of the second body after collision.

A body of mass 1 kg is moving with velocity 30 ms^(-1) due north. It is acted on by a force of 10 N due west for 4 seconds. Find the velocity of the body after the force ceases to act.