Advice for the Quarterback < 2 of 10 > A quarterback is set up to throw the football to a receiver who is running with a

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Advice For The Quarterback 2 Of 10 A Quarterback Is Set Up To Throw The Football To A Receiver Who Is Running With A 1 (53.42 KiB) Viewed 48 times

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Advice for the Quarterback < 2 of 10 > A quarterback is set up to throw the football to a receiver who is running with a constant velocity 7, directly away from the quarterback and is now a distance D away from the quarterback. The quarterback figures that the ball must be thrown at an angle to the horizontal and he estimates that the receiver must catch the ball a time interval te after it is thrown to avoid having opposition players prevent the receiver from making the catch. In the following you may assume that the ball is thrown and caught at the same height above the level playing field. Assume that the y coordinate of the ball at the instant it is thrown or caught is y = 0 and that the horizontal position of the quarterback is x = 0. D -X
Part A Find Voy, the vertical component of the velocity of the ball when the quarterback releases it. Express voy in terms of te and g. ► View Available Hint(s) Voy = 箔 ΑΣΦ 0.5g(tc)² ?
Part B Find vox, the initial horizontal component of velocity of the ball. Express your answer for vox in terms of D, tc, and ► View Available Hint(s) Vox = V ΑΣΦ ?
▼ Part C Find the speed vo with which the quarterback must throw the ball. Answer in terms of D, tc, Ur, and g. ► View Available Hint(s) VO || VO ΑΣΦ Submit ?
Part D Assuming that the quarterback throws the ball with speed vo, find the angle above the horizontal at which he should throw it. Your solution should contain an inverse trig function (entered as asin, acos, or atan). Give your answer in terms of already known quantities, Vox, Voy, and vo. ► View Available Hint(s) Oll VO ΑΣΦ ?