A ball with a mass of 5 kg is rolling at 12 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
Nov 23, 2017
The velocities are
Explanation:
Here it's an elastic collision with no loss of kinetic energy.
We have the conservation of momentum.
There is also conservation of kinetic energies
From
Plugging this value in