A ball of mass 4kg travelling at 10m/s makes an elastic head-on collision with another ball of mass 1 kg - Physics -

Question

A ball of mass 4kg travelling at 10m/s makes an elastic head-on
collision with another ball of mass
1 kg at rest After the collision the speed of the lighter ball is
1) zero 2) less than 10 m/s 3) equal to 10 m/s 4) greater than 10
m/s

Shobhit Mittal · Accepted Answer

A ball of mass 4kg travelling at 10m/s makes an elastic head-on collision with another ball of mass 1 kg at rest. After the collision the speed of the lighter ball is 1) zero. 2) less than 10 m/s. 3) equal to 10 m/s. 4) greater than 10 m/s.

A ball of mass 4kg travelling at 10m/s makes an elastic head-on collision with another ball of mass
1 kg at rest. After the collision the speed of the lighter ball is 1) zero. 2) less than 10 m/s. 3) equal to 10 m/s. 4) greater than 10 m/s.