What is the average force exerted by a bat on a softball during contact?

AI Thread Summary
The average force exerted by a bat on a 2 kg softball during contact is calculated using the change in momentum. Initially, the momentum before impact is positive, and after hitting the ball back, it becomes negative, resulting in a total change of 80 kg·m/s. Dividing this change by the contact time of 0.10 seconds yields an average force of 800 N. The calculation confirms that the initial misunderstanding about momentum being zero was incorrect due to not accounting for the direction of the vector. Thus, the average force exerted by the bat is 800 N.
alessandro
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Homework Statement


a 2 kg softball is pitched to u at 20 m/s. you hit the ball back along the same path, and at the same speed. IF the bat was in contact with the ball for 0.10 s, what is the magnitude of the average force the bat exerted?


Homework Equations



FAT=Pf-pi

The Attempt at a Solution


i found Pi and pf which are 40 and 40 respectively then i subctraed them and i get 0 which is also FAT..then i divided by 0.1 and i get 0...is is correct?
 
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No. The momentum is a vector. So if Pi is positive, then Pf is negative. Now find the change in the momentum.
 
i see..so now i get 80 and then i divded for 0,1 and i get 800 N
 
Yes.
 
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