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I am trying to calculate a starting torque required to move the drum at 6rpm that weights 2000kg and has 1200mm in diameter.

There would be no problem to do this calc in normal circumstances as I can find a moment of inertia formula for a pipe in my book.

But in this case there is a tension of 3000N acting on the rim of my drum.

What will be the formula for the moment of inertia in this case?

Thanks

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# Determine moment of Inertia from resistance

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