A heavier sphere moving eastward with a certain velocity .v. collides with a lighter sphere at rest. If it is perfect elastic head on collison, then after collision

A heavier sphere moving eastward with a certain velocity .v. collides

1.	A heavier sphere moving eastward with a certain velocity .v. collides with a lighter sphere at rest. If it is perfect elastic head on collison, then after collision
Answer» heavier sphere MOVES WEST ward with same speed heavier sphere COMES to REST lighter sphere moves eastward with velocity 2v approximately lighter sphere moves eastward with velocity approximately ANSWER :C