can anyone help me derive the moment of inertia for a rectangular plate, area of ab, (with the axis through the center)? i know it ends up being (1/12)(M)(a^2+b^2) but when i try it, my a's and b's end up canceling... its craziness. also, when i try the sphere, instead of (2/5)MR^2, i get(3/5)MR^2...(adsbygoogle = window.adsbygoogle || []).push({});

thanks...

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# Moment of inertia

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