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OCW Scholar - Physics I: Classical Mechanics
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OpenStudy (anonymous):
Suppose you drop a feather and a steel ball of equal masses (0.015 kg) at the same time from a height of 1.6 m and you are told that the feather hits the floor 4.2 s after the steel ball. Estimate the value of the terminal velocity of the feather in air. & Estimate the feather's drag coefficient.
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