Marble A, travelling at U1 m/s hits Marble B, initially stationary.
After the collision, B moves at V2 m/s. Friction is negligible.
Coefficient of Restitution = 0.45
U1 = 0.62m/s
V2 = 0.37m/s
Calculate the velocity (magnitude and direction), in m/s to 2dp, of marble A after the collision.
Make sure the sign is correct. If you think the answer is 1.5 enter 1.5, if -1.5 enter -1.5.