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## Homework Statement

A 0.291 kg rubber ball is dropped from a height of 3.72 m, and it rebounds to a height of 2.88 m. Assume there is no air friction.

a) Find the magnitude of the impulse exerted by the ground on the ball.

## Homework Equations

Vf^2=V0^2+2as

MV=P

DeltaP=I

## The Attempt at a Solution

I used Kinematic equations to find out the the Vf down of the ball was 8.54

and then Vavg=4.27... MVdown=1.242

MVdown-MVup = Impulse

MVup i did the same thing i got 1.093

Ended up wrong

Thank you for your help