The physics of a moving tennis ball and the net force. When a 0.058 kg tennis ball is served, it accelerates from rest to a speed of 45.0 m/s. The impact with the racket gives the ball a constant acceleration over a distance of 0.440 m. What is the magnitude of the net force acting on the ball? a. What is the average velocity of the ball? b. Over what time period was the ball struck? c. What is the acceleration of the ball? d. What is the net force on the ball? e. If the ball had been heavier, but experienced the same change in velocity, would the applied force have to be greater or lesser than before