# Hitting a tennis ball - the magnitude of the net impulse

The tennis ball has a horizontal speed of 15 m/s when struck by the racket. If it then travels away at an angle of 25 deg 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 180g. Neglect the weight of the ball during the time the racket strikes the ball.

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