A girl running along a circular path with a uniform speed. How much wo

1.	A girl running along a circular path with a uniform speed. How much work done by the girl
Answer» After 1 complete rotation ,the displacement is 0, so no work is done by the girl .Since, work = force X displacement .Work done is zero in the following cases :1. If F = 02. If s =03. If F s cos 90 degrees. (If F and s are perpendicular )

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