A ball with a mass of 3 kg is rolling at 2 m/s and elastically collides with a resting ball with a mass of 4 kg. What are the post-collision velocities of the balls?
1 Answer
The velocity of the first ball is
Explanation:
Since the collision is elastic, there is conservation of linear momentum and conservation of kinetic energy.
So,
Solving for
We keep the second result
Verification