A tennis player receives a shot with the ball (0.060 0 kg) traveling horizontally at 55.5 m/s and returns the shot with the ball traveling horizontally at 36.0 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?

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

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