A tennis player receives a shot with the ball 0060 0 kg, Ask an Expert

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A tennis player receives a shot with the ball (0.060 0 kg) traveling horizontally at 55.0 m/s and returns the shot with the ball traveling horizontally at 40.5 m/s in the opposite direction. (Assume the initial direction of the ball is in the ?x direction.)

(a) What is the impulse delivered to the ball by the tennis racquet?

____________________i N*s

(b) What work does the racquet do on the ball?

____________________ J

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