A tennis player swings her 1090 gram racket with a speed of 10.2 m/s. She hits a 53 gram tennis ball that was approaching her at a speed of 18.7 m/s. The ball rebounds at 38.3 m/s. Determine how fast is her racket moving immediately after the impact? Neglect the interaction of the racket with her hand for the brief duration of the collision.
If the tennis racket and ball are in contact for 9.3 milliseconds, find the average force that the racket exerts on the ball? Define how does this compare to the gravitational force on the ball?