The tennis player swings her 1200 g racket with a speed of 10.9 m/s. She hits a 60 g tennis ball which was approaching her at a speed of 18.4 m/s. The ball bounces back at 41.8 m/s. Determine how fast is her racket moving instantly after the impact? You can overlook the interaction of the racket with her hand for the short duration of the collision.
If the tennis ball and racket make contact with for 8.12 ms, then determine the average force which the racket applies on the ball? Explain how does this compare to the gravitational force on the ball?