- #1

- 163

- 0

## Homework Statement

A father (m = 86 kg) and son (m = 45 kg) are standing facing each other on a frozen pond. The son pushes on the father and finds himself moving backward at 3 m/s after they have separated. How fast will the father be moving?

## Homework Equations

P=mv ( mass x velocity)

P=(m1 + m2) v

## The Attempt at a Solution

(45+86) 3= 393. I have tried many different things and can't seem to come up with the answer.