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can some one please tell me where am i wrong?

A mass of 9.50 kg is suspended from a 1.19 m long string. It revolves in a horizontal circle.

The tangential speed of the mass is 2.28 m/s. Calculate the angle between the string and the vertical.

so what i need is the ratio between radius and string length. to find the radius i use v and the fact it equals wr. w is the square of ration between g and l.

thanks

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# Homework Help: Circuler motion angle

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