When a 58-g tennis ball is served, it accelerates from rest to a speed of 45...
When a 58-g tennis ball is served, it accelerates from rest to a speed of 45 m/s. The impact with the racket gives t he ball a constant acceleration over a distance of 44 cm. What is the magnitude of the net force acting on the ball?
Homework Answers
using v^2 - u^2 = 2ad
45^2 - 0 = 2 x a x 0.44
a = 2301.14 m/s2
F = ma = 58 x 10-3 x 2301.14 = 133.47 N
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