A ball with a mass of #12kg# moving at #4 m/s# hits a still ball with a mass of #2 kg#. If the first ball stops moving, how fast is the second ball moving?
1 Answer
Feb 24, 2016
Explanation:
This is a simple case of conservation of linear momentum. This means that
Reason why is because they said that the first ball stops, so the velocity of the first ball after collision is
We have,
So,
I'm sure it gets simple from here.