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December 18, 2014

Homework Help: Physics

Posted by Emily Grossman on Tuesday, February 22, 2011 at 4:31pm.

A ball on the end of a string is revolved at a uniform rate in a vertical circle of radius 72.0m, as shown in figure. If it's sped is 4.00 m/s and its mass is .300kg. Calculate the tension in the string when the ball is a). at the top of its path and b). when it's at the bottom of the path.

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