1. The problem statement, all variables and given/known data Two equal balls are in contact on a table and are in equillibrium. A third ball collides with them simultaneously, symetrically and remains at rest after the impact. The coefficient of restitution is : A)2/3 B)3/2 C)1/3 D)1/2 2. Relevant equations 3. The attempt at a solution i hav tried by combining the masses and velocities of the two balls at rest then found e. like the collision of two bodies ( considering two bodies as one ) .