1. The problem statement, all variables and given/known data Two balls roll towards each other. Ball A moves to the right with velocity 5 m/s and ball B moves to the left with velocity 3m/s. If both balls have the same mass, m=50kg, determine the final velocity of them if they move off together after collision. In which direction will they move? 2. Relevant equations F = M(Vf - Vi)/2 (is this correct?) Vf = Vi + Acceleration * Time (is this correct?) V = d/t 3. The attempt at a solution M = 50kg Vi of ball A = 5m/s Vi of ball B = 3m/s A = ? T = ? Ball A: Vf = 5 + A * T Using formula V = d/t 5 = d/t I stuck, don't know how to work this out. Any hints?