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A 220g ball falls vertically downward, hitting the floor with a speed of 2.4 m/s and rebounding upward with a speed of 1.8 m/s.

A.) Find the magnitude of the change of the balls momentum (up=positive)

i used p=mv; (.22kg)(1.8) = .396 as well as (220g)(1.8)=396

B.) Find the change in the magnitude of the balls momentum. (Neg. value=decrease in magnitude)

Can anyone help on this 2 parts?

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# Homework Help: Calculating Momentum

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