8. A tennis player returns a 30.0 m/s serve straight back at 25 m/s, after making contact with the ball for 0.50 s. The ball has a mass of 0.20 kg. a. Impulse-Momentum equation: b. How much force did the racket exert on the ball?
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The momentum of an object is given by the product of its mass and velocity. The initial momentum of the ball is its mass times its initial velocity, which is 0.20 kg * 30.0 m/s = 6.0 kg*m/s. The final momentum of the ball is its mass times its final velocity, Show more…
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