81. a 560-g squirrel with a surface area of 930cm2 falls from a 5.0-m tree to the ground. estimate its terminal velocity. (use a drag coefficient for a horizontal skydiver.) what will be the velocity of a 56-kg person hitting the ground, assuming no drag contribution in such a short distance?
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81. a 560-g squirrel with a surface area of 930cm2 falls from a 5.0-m tree to the ground. estimate i...
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