Posted by **Eve** on Wednesday, February 13, 2013 at 1:44pm.

A 2.5 kg object is whirled in a vertical circle whose radius is 0.89 m. If the time of one revolution is 0.94 s, the magnitude of the tension in the string (assuming uniform speed) when it is at the top is

I just need the formula and it doesn't even have to be manipulated.

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