While on approach to Suvarnabhumi International Airport you toss Raoul into the

Question

While on approach to Suvarnabhumi International Airport you toss Raoul into the gulf of Thailand from an altitude of 10,000 feet. Raoul is traveling at a terminal velocity (in more ways than one) of 60 m/s when he smashes into the water. He experiences constant acceleration as he descends to a depth of 9 m before his motion stops and he becomes a ready meal for the nearby sharks. What was the magnitude of the average net force (in N) experienced by Raoul as he moved through the water? Raoul’s mass is 75 kg.

Explanation / Answer

initial velocity = 60 final velocity = 0 acceleration = a -60^2 = 2a(9) a = -200 average net force = ma = 75*200 = 15000 N = 15 kN

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