(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A ball with original momentum of +4.0 kg*m/s hits a wall and bounces straight back without losing any kinetic energy. The change in momentum of the ball is?

2. Relevant equations

p (momentum) = mv

Impulse = change in p/change in t

3. The attempt at a solution

I thought that if the KE was conserved, then momentum had to be conserved to, so needless to say, I am confused. Any help would be appreciated!

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Change In Momentum With No Loss Of Ke

**Physics Forums | Science Articles, Homework Help, Discussion**