i'm driving myself insane here...ok, you have a ball wrapping around a pole (was initialy spinning with a horizontal velocity). Ok, Can someone tell me what is wrong with the formula dWork = -(mv^2/lsinX)*dxsinX + mgdlsinX where X is the angle the rope makes with the pole, v is current velocity and l is length of string? I am making the assumption that the pole is small so the velocity is assumed to be horizontal.(adsbygoogle = window.adsbygoogle || []).push({});

I don't want a solution to the problem, just a reason why that formula is wrong.

Thanks

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# Tetherball physics problem

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