Posted by Natasha on Monday, March 12, 2012 at 9:38pm.
Force * contact time = impulse
= momentum change
= 0.151 kg*(45.7 + 39.8)m/s
Solve for the force in Newtons. You do not have to consider the weight of the ball, since it is in a different (vertical) direction from the force of the bat, anyway. The choice of positive direction also doesn't matter. Whoever wrote this question is just making it harder with the "hints".
When I did this I got the answer 12.91 prior to you responding to me and when I tried the way you said I recieved the same answer but our software is telling me that its wrong and i tried twice.
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