## Question:

The tennis ball has a horizontal speed ${ v }_{ 1 }$ when it is struck by the racket. If it then travels away at angle θ from the horizontal and reaches maximum altitude h, measured from the height of the racket, determine the magnitude of the net impulse of the racket on the ball. The ball has mass M. Neglect the weight of the ball during the time the racket strikes the ball. Given: ${ v }_{ 1 }$ = 15 m/s , θ = 25 deg , h = 10 m , M = 180 gm , g = ${ 9.81 m/s }^{ 2 }$