Question

Two masses $m_{a}\ and\ m_{b}$ moving with velocities $v_{a}\ and\ v_{b}$ in opposite direction collide elastically and after the collision $m_{a}\ and\ m_{b}$ move with velocities $v_{b}\ and\ v_{a}$ respectively. Then the ratio $\frac{m_{a}}{m_{b}}$ is
(a) $\frac{V_{a}-V_{b}}{V_{a}+V_{b}}$
(b) $\frac{m_{a}+m_{b}}{m_{a}}$
(c) 1
(d) $\frac{1}{2}$

Answer 1

I am not sure if you have any questions