A 60-g tennis ball initially at rest is hit by a racket. The ball is in contact with the racket for a time of 2.0 ms. After impact, the ball moves at a speed of 120 km/h. Find the average force exerted by the racket on the ball. A 60-g tennis ball initially at rest is hit by a racket. The ball is in contact with the racket for a time of 2.0 ms. After impact, the ball moves at a speed of 120 km/h. Find the average force exerted by the racket on the ball.

A 60-g tennis ball initially at rest is hit by a racket. The ball is in contact with the racket for a time of 2.0 ms. After impact, the ball moves at a speed of 120 km/h. Find the average force exerted by the racket on the ball. A 60-g tennis ball initially at rest is hit by a racket. The ball is in contact with the racket for a time of 2.0 ms. After impact, the ball moves at a speed of 120 km/h. Find the average force exerted by the racket on the ball.