jordanmazer17
16.07.2019 •
Physics
Atennis player swings her 1000 g racket with a speed of 9.0 m/s . she hits a 60 g tennis ball that was approaching her at a speed of 25 m/s . the ball rebounds at 36 m/s . (a) how fast is her racket moving immediately after the impact? you can ignore the interaction of the racket with her hand for the brief duration of the collision. (b) if the tennis ball and racket are in contact for 10 ms, what is the average force that the racket exerts on the ball? (c) how does this compare to the ball's weight?
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Ответ:
it would be 6.65 I want to say