MY NOTES ASK YOUR TEACHER PRACT A mj = 5.1 kg ball moving at v1 = 6.6 m/sec collides with a my = 1.1 kg ball at rest. The balls bounce off each other and the second ball moves in the same direction as the first ball at 11.3 m/sec. What is the velocity V2 of the first ball after the collision? i'm/sec Enter a number Before After m, m2 V 2 at rest