A 120-lbf (534 N) skydiver is free-falling at an altitude of 6500 ft ( 1980 m). Estimate
Chapter 11, Problem 11.51(choose chapter or problem)
A 120-lbf (534 N) skydiver is free-falling at an altitude of 6500 ft ( 1980 m). Estimate the terminal velocity in mph for minimum and maximum drag conditions. At maximum drag conditions, the product of frontal area and coefficient of drag is C0 A = 8 tr (0.743 m2 ). At mininmm drag conditions, C0 A = 1 if (0.0929 m2 ). Assume the pressure and temperature at sea level are 14.7 psia (101 kPa) and 60F (IS0 C). To calculate air properties, use the lapse rate for the U.S. standard atmosphere (see Chapter 3).
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