A ball with a mass of #14 kg# moving at #2 m/s# hits a still ball with a mass of #20 kg#. If the first ball stops moving, how fast is the second ball moving? How much kinetic energy was lost as heat in the collision?
1 Answer
May 23, 2018
Please see the explanation below
Explanation:
We have conservation of momentum
The mass the first ball is
The velocity of the first ball before the collision is
The mass of the second ball is
The velocity of the second ball before the collision is
The velocity of the first ball after the collision is
Therefore,
The velocity of the second ball after the collision is
The loss in kinetic energy is
The kinetic energy lost in the collision is