A ball with a mass of 5 kg is rolling at 9 m/s and elastically collides with a resting ball with a mass of 2 kg. What are the post-collision velocities of the balls?
1 Answer
Apr 8, 2017
The velocity of the first ball is
The velocity of the second ball is
Explanation:
In an elastic collision, we have conservation of momentum and conservation of kinetic energy,
and
Solving the above 2 equations for
and
Therefore,
Verificaition