- #1

gigglin_horse

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## Homework Statement

"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?"

## Homework Equations

net momentum before = net momentum after?

Ft=(change in) mv?

## The Attempt at a Solution

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

but what's the stopping got to do with it?

isnt both halves of this question the same?

Im so confused :S

Please help