A body moving towards a body of finite mass at rest collides with it. It is possible that

When the second body is at rest, velocities after the elastic collision are given by v1=m1−m2m1+m2u1 and v2=2m1m1+m2u1It is obvious that both bodies move after the collision. lf m1=m2, then v1=0 and v2=u1. Further, v2 cannot be zero. So, options (b) and (c) are correct.