Question: A tennis player returns a 30 m/s serve back at 25 m/s after making contact with the ball for .5 seconds.
If the ball has a mass of 0.2 kg, what is the force she exerted on the ball?
Denote the force she exerted on the ball by F. Denote the mass of a ball by m. So m=0.2 kg. We can set up ...
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