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Homework Help
Calculus and Beyond Homework Help
A feather and a ball falling with air resistance
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[QUOTE="BSH, post: 5259385, member: 574206"] [h2]Homework Statement [/h2] Suppose you drop a feather and a steel ball of equal masses (0.014 kg) at the same time from a height of 2.2 m and you are told that the feather hits the floor 3.5 s after the steel ball. Estimate the value of the terminal velocity of the feather in air. Then, estimate the feather's drag coefficient. [h2]Homework Equations[/h2] mg - cv = ma [h2]The Attempt at a Solution[/h2] I did the calculus as I've done many times before and got that v=(mg/c)(1-e^(-ct/m)) and the terminal veocity = mg/c. The only other thing I feel I could do is assume the air resistance experienced by the ball is negligible, but I don't know how that helps me if I know so little about the feather. [/QUOTE]
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A feather and a ball falling with air resistance
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