ah 100*.145 = 14.5 not 1.45
the change in momentum divided by the time in contact = average force.
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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0 idk
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