Q1. Two identical balls, each of mass 3.0 kg, collide elastically in a one-dimensional collision. The first ball moves with a velocity of 5.0 m/s towards the second ball, which is initially at rest. What are the final velocities v1 and v2 of first ball and second ball, respectively, after the collision?
- (1) v1 = 0 m/s, v2 = 5.0 m/s
- (2) v1 = 2.5 m/s, v2 = 2.5 m/s
- (3) v1 = 1.0 m/s, v2 = 4.0 m/s
- (4) v1 = 5.0 m/s, v2 = 0 m/s
- (5) Question not attempted