(6%) Problem 9: A punted football is observed to have velocity components Vhoria

Question

(6%) Problem 9: A punted football is observed to have velocity components Vhoria nal -19.5 m/s to the right and Vyertical-4.5 m/s directed downward at a height h 2.6 m above the ground. Use a Cartesian coordinate system with the origin located on the ground at the position the football was punted and assume it encountered no air resistance. - @theexpertta.com- tracking id: 8075-25-56-4D-8038-18965. In accordance with Expert TA's Terms of Service. copying this information to any solutions sharing website is strictly forbidden. Doing so may result in termination of your Expert TA Account 50% Part (a) Determine the football's initial horizontal velocity magnitude pr in terms ofn var = vhorizontal V Correct! i nal. re al g, and h. 50% Part (b) Calculate the time, in seconds, the football moved between being punted and observed. Grade, Deducti Potentia tan() | |( acoso Submissie Attempts r (0% per at cotano asinO atanO acotanO sinho cosh tanhO cotanhO 4 5 6 detailed vie 0

Explanation / Answer

Using relation,

V^2 = u^2 + 2as

4.5^2 = u^2 - (2 x 9.8 x 2.6)

u = 8.44 m/s

Using relation, v = u + at

-4.5 = 8.44 - (9.8 x t)

Time, t = 1.32 sec

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