A 50-lb box shaped like a 1-ft cube falls from the cargo holdof an airplane at an
Chapter 9, Problem 9.79(choose chapter or problem)
A 50-lb box shaped like a 1-ft cube falls from the cargo holdof an airplane at an altitude of 30,000 ft. If the drag coefficientof the falling box is 1.2, determine the time it takes for the boxto hit the ocean. Assume that it falls at the terminal velocity correspondingto its current altitude and use a standard atmosphere(see Table C.1).
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