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Hi, I am doing a physical project and i encountered a vital problem. I need to calculate the moment of inertia of hollow paper block(beam of a trebuchet(type of a catapult)). I was looking on the internet and there is no explanation of this particular case.

So, would anyone know how to calculate the moment of inertia for hollow paper object? (block, pyramid with no base and cut top with a hole in it for example)

Is there any formula for it?

Thanks for potential responses

So, would anyone know how to calculate the moment of inertia for hollow paper object? (block, pyramid with no base and cut top with a hole in it for example)

Is there any formula for it?

Thanks for potential responses

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