Question Answers

Sahay Sir > Question Answers > Cengage NEET by C.P Singh > Part 1 > Chapter 10 - COM, Momentum and Collision > Three objects A ,B and C are kept in a straight line on a smooth horizontal surface. These have masses m, 2m and 3m , respectively . The head – on elastic collision takes place between A and B and then B makes completely inelastic collision with C. All motions occur on the same straight line. The final speed of C will be

Three objects A ,B and C are kept in a straight line on a smooth horizontal surface. These have masses m, 2m and 3m , respectively . The head – on elastic collision takes place between A and B and then B makes completely inelastic collision with C. All motions occur on the same straight line. The final speed of C will be

2m and 3m A neutron collides head-on and elasticity with an atom of mass number A B and C are kept in a straight line on a smooth horizontal surface. These have masses m Three objects A which is initially at rest. The fraction of kinetic energy retained by neutron is