(adsbygoogle = window.adsbygoogle || []).push({}); The Question:

(1) You are standing on a sheet of ice that covers a parking lot; there is negligible friction between your feet and the ice. A friend throws you a 0.400 kg ball that is traveling horizontally at 10.2 m/s. Your mass is 73.4 kg.

(a) If you catch the ball, with what speed do you and the ball move afterward? Answer in cm/s.

(b) If the ball hits you and bounces off your chest, so that afterward it is moving horizontally at 8.70 m/s in the opposite direction, what is your speed after the collision? Answer in cm/s.

My Solution:

I was able to solve Part A. It's Part B I'm having trouble with. I used

(.400kg)(870cm/s)=(73.4kg)(v)

I solved for v and got 4.74cm/s, but the answer is wrong.

What am I doing wrong?

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# Homework Help: Momentum (Catching Ball on Ice)

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