Question

when a58g tennis ball is served.it accelerate from rest to aspeed of 45m/s.the impact with the racket gives the ball acontant acceleration over adistance of44cm.what is the magnitude of the net force acting on the ball?​

Answer 1

Answer: We first calculate the acceleration on the ball using:

2as = v² - u²; u = 0 because ball is initially at rest

a = (36)²/(2 x 0.35)

a = 1850 m/s²

F = ma

F = 0.058 x 1850

= 107.3 Newtons

Step-by-step explanation: