A skydiver weighing 200 lbf (including equipment) falls vertically downward from an altitude of 5000 ft and opens the parachute after 13 s of free fall. Assume that the force of air resistance, which is directed opposite to the velocity, is 0.75 | v| when the parachute is closed and 14| v| when the parachute is open, where the velocity vis measured in ft/s. Use g = 32 ft/s?. Round your answers to two decimal places. (a) Find the speed of the skydiver when the parachute opens. v(13) = i ft/s (b) Find the distance fallen before the parachute opens. x(13) = i ft (c) What is the limiting velocity Vr, after the parachute opens? VL = ft/s

A skydiver weighing 200 lbf (including equipment) falls vertically downward from an altitude of 5000 ft and opens the parachute after 13 s of free fall. Assume that the force of air resistance, which is directed opposite to the velocity, is 0.75 | v| when the parachute is closed and 14| v| when the parachute is open, where the velocity vis measured in ft/s. Use g = 32 ft/s?. Round your answers to two decimal places. (a) Find the speed of the skydiver when the parachute opens. v(13) = i ft/s (b) Find the distance fallen before the parachute opens. x(13) = i ft (c) What is the limiting velocity Vr, after the parachute opens? VL = ft/s

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter5: Analysis Of Convection Heat Transfer

Section: Chapter Questions

Problem 5.8P

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