A mass m1 moves with a great velocity. It strikes another mass m2 at rest in head-on collision. It comes back along its path with low speed after collision.then A mass m1 moves with a great velocity. It strikes another mass m2 at rest in head on collision. It comes back along its path with low speed after collision. Then November 27, 2020 Category: Cengage JEE Mains Physics by B.M Sharma , Chapter 8 - COM, Momentum and Collision , Facebook Messenger WhatsApp Share this:TwitterFacebook Related