A tennis player swings her 1000 gram racket with a speed of 15 m/s. She hits a 60 gram tennis ball that was approaching her at a speed of 15 m/s. The ball rebounds at 45 m/s.
Find how fast is her racket moving immediately after the impact? You can neglect the interaction of the racket with her hand for the brief duration of the collision.
If the tennis ball and racket are in contact for 11 milliseconds, obtain the average force that the racket exerts on the ball?