Homework Help: Physics

Posted by brian on Monday, November 8, 2010 at 3:55am.

A 0.145 kg baseball pitched at 38.0 m/s is hit on a horizontal line drive straight back toward the pitcher at 55.0 m/s. If the contact time between bat and ball is 3.40×10−3 s, calculate the average force between the ball and bat during contact.

Physics - Henry, Tuesday, November 9, 2010 at 10:44pm
a = (Vf - Vo) / t,
a = (55 - 38) / 0.005 = 5000 m/s^2.

F = m*a = 0.145 * 5000 = 725 N.

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