The fastest served tennis ball, served by "Big Bill" Tilden in 1931, was measured at 73.14 m/s . The mass of a tennis ball is 57.0 g , and the ball is typically in contact with the tennis racquet for 30.0 ms, with the ball starting from rest. a) Assuming constant acceleration, what force did Big Bill's tennis racquet exert on the tennis ball if he hit it essentially horizontally?
b) Make a free-body diagram of the tennis ball during the serve. c) Make a free-body diagram of the tennis ball just after it has moved free of the racquet.