Posted by Shane on Monday, November 16, 2009 at 5:42pm.
initial PE=FinalKE-thermalenergylost
mgh=1/2mv^2-thermalenergy lost.
a 0.145 kg baseball pitched at 39.0 m/s is hit on a horizontal line drive straight back toward the pitcher at 52.0 m/s.if the contact time between bat and ball is 0000.3 s,calculate the average force between the ball and bat during contact.
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