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2 July, 22:32

A small mass m is tied to a string of length L and is whirled in vertical circular motion. The speed of the mass v is such that the ratio of the string tension at the top of the circle to that at the bottom of the circle is FtopT/FbotT = 0.5. Derive an expression for the speed v.

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  1. 2 July, 22:35
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    (mv^2/R) / (mg) = 1/2

    v^2=R/2g
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