We are comparing bat performance for a 5th grade science fair project, and need something to swing a bat the same way each time.|||I can't fathom "bat performance".
If you had 2 bats, 1 heavy and 1 light, but swing them both exactly the same distance and with the same speed, to hit such as a ball, that is identical for both bats, would it not impart exactly the same force to the ball?
The only difference (slight), could be in the surface composition, e.g. if one bat had a rubber face and another solid steel.|||you dont|||knowledge in motors and controls would be a help. i dont think you have covered this subject matter yet since your still in 5t grade.
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