A sphere of mass 0.3kg moving with a velocity of 4m/s collides with another sphere of mass 0.5kg which is at rest. Assuming the collision to be elastic, their velocities after the impact are

A sphere of mass 0.3kg moving with a velocity of 4m/s collides with an

1.	A sphere of mass 0.3kg moving with a velocity of 4m/s collides with another sphere of mass 0.5kg which is at rest. Assuming the collision to be elastic, their velocities after the impact are
Answer» 4m/s and `0 m/s^(-1)` `-1 m//s and 3 m//s` `2 m//s and 2m//s` `4 m//s and 8 ms^(-1)` ANSWER :B