Posted by **Nate** on Sunday, February 14, 2010 at 6:23pm.

I got all but this problem.

A 0.145-kg baseball is pitched at 42.0 m/s. The batter hits it horizontally to the pitcher at 58 m/s.

A. Find change in momentum? Is it =.145*58-(-.145*42)=1.45-kg m/s?

B. If bat and ball are in contact for 4.6 x 10-4 s, what is average force during contact?

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