A moving body of mass m makes a head on elastic collision with another body of mass $2$m which is initially at rest. Find the fraction of kinetic energy lost by the colliding particle after collision.

Q. Body $A$ of mass $4m$moving with speed $u$ collides with another body $B$ of mass $2m$ at rest. The collision is head on and elastic in nature. After the collision, the fraction of kinetic energy lost by the colliding body $A$ is

Q. A body of mass $m$ moving with velocity $v$ makes a head on elastic collision with another body of mass $2m$ which in initially at rest. The loss of kinetic energy of the colliding body (mass m) is :

Q. A body of mass m moving with velocity v suffers head on elastic collision with another body of mass 2 m at rest. The ratio of kinetic energy of the colliding body before and after collision is

Q. A body of mass m moving with velocity v makes a head-on collision with another body of mass 2m which is initially at rest. The ratio of kinetic energies of colliding body before and after collision will be

Q.

A body of mass 'm' moving with velocity 'v' collides head on elastically with another body of mass '2m' which was initially at rest. The ratio of K.E. of colliding body of mass 'm' before and after collision would be