The diagram shows a tennis racket about to strike an incoming tennis ball.
The ball is travelling towards the racket at a velocity of 32 m/s.
The ball is hit back in the opposite direction at a velocity of 48 m/s.
The ball has a mass of 0.056 kg.
The ball remains in contact with the strings of the racket for a time of 6.4 ms.
Calculate the average force exerted on the ball by the tennis racket.
Use the equation:
F=mv−mut F = \frac{mv - mu}{t} F=tmv−mu