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The tennis ball is struck with a horizontal velocity { v }_{ A } , strikes the smooth ground at B, and bounces upward at θ = { θ }_{ 1 } . Determine the initial velocity { v }_{ A } , the final velocity { v }_{ B } , and the coefficient of restitution between the ball and the ground. Given: h = 7.5 ft , d = 20 ft , { θ }_{ 1 } = 30 deg , g = { 32.2ft/s }^{ 2 }

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