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

"solve for the amount of force on an 8kg ball rolling at 2m/s when it bumps into a pillow and stops in 0.5 seconds."

...and...

"how much force does the pillow exert on the ball?"

2. Relevant equations

net momentum before = net momentum after?

Ft=(change in) mv?

3. The attempt at a solution

8kg x 2m/s = 16N of force.....or 16 kg.m/s

but whats the stopping got to do with it?

isnt both halves of this question the same?

Im so confused :S

Please help

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# Homework Help: Solve for the amount of force on an 8kg ball

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