Solved: (Ill) The drag force on large objects such as

Chapter , Problem 68

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(Ill) The drag force on large objects such as cars, planes, andsky divers moving through air is more nearly Fd = ~bv2.(a) For this quadratic dependence on v, determine aformula for the terminal velocity Vj, of a vertically fallingobject, (b) A 75-kg sky diver has a terminal velocity ofabout 60 m/s; determine the value of the constant b.(c) Sketch a curve like that of Fig. 5-27b for this case ofFd oc v2. For the same terminal velocity, would this curve lieabove or below that in Fig. 5-27? Explain why.

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