Test Academy | A body of mass m is tied to one end of a string of length l and revolves vertically in a circular path. At the lowest point of circle, what must be the K.E. of the body so as to complete the circle 5 mgl, 4 mgl, 2.5 mgl, 2 mgl

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A body of mass m is tied to one end of a string of length l and revolves vertically in a circular path. At the lowest point of circle, what must be the K.E. of the body so as to complete the circle

Options :

5 mgl
4 mgl
2.5 mgl
2 mgl

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