Take a look at this example. It is very similar to yours.
http://www.a-levelmathstutor.com/m-momimp-coeffrest.php
A ball of mass 1000g moving with 7m/s impinges another ball of twice its own mass
and moving with 1/6th of its own velocity and moves in the opposite direction. If the coefficient of restitution is 0.75, calculate the velocities of the two balls after impact.
Pl help me
1 answer