The tennis ball has a horizontal speed of 15 m/s when it is stuck by the racket. If it then travels away at an angle of 25o from the horizontal and reaches a maximum altitude of 10m, measured from the height of the racket, determine the magnitude of the net impulse of the racket on the ball. The ball has a mass of 180 g. neglect the weight of the ball during the time the racket strikes the ball. |

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