again
Force * time = change of momentum (also called impulse)
440 * .0045 = .057 v
v = 34.7 m/s
Max is throwing a 57g tennis ball upward and hitting it (with a racket) when it reaches the top of its flight. If the racket exerts an average force of 440N on the ball, find the speed of the ball after the collision (if they are in contact for 4.5ms)
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