A neutron makes a head-on elastic collision with a stationary deuteron. The fractional energy loss of the neutron in the collision is
A ball of mass $m$ moving with velocity $v$ collides head-on with the second ball of mass $m$ at rest. If the coefficient of restitution is $e$ and velocity of first ball after collision is $v_1$ and velocity of second ball after collision is $v_2$ then
Two smooth objects with a coefficient of restitution $e,$ collide directly and bounce as shown. Newton's law of restitution gives
A ball hits a vertical wall horizontally at $10m/s$ bounces back at $10 m/s$
A ball strikes a horizontal surface as shown in figure. If co-efficient of restitution $e = 1/ \sqrt 3$, then angle $\theta$ is ............... $^o$