A ball with a mass of #7 kg# moving at #4 m/s# hits a still ball with a mass of #9 kg#. If the first ball stops moving, how fast is the second ball moving?

1 Answer
A08
Jan 16, 2016

#=3.1 dot 1 m/s# in the direction of motion of the first ball.

Explanation:

See [A ball with a mass of #8 kg# moving at #7 m/s# hits a still ball with a mass of #12 kg#. If the...](https://socratic.org/questions/a-ball-with-a-mass-of-8-kg-moving-at-7-m-s-hits-a-still-ball-with-a-mass-of-12-k)

Related questions
See all questions in Conservation of Momentum
Impact of this question
1516 views around the world
You can reuse this answer
Creative Commons License