Hi i tried to understand an old report about a beam, in the report maximum normal force due to bending is investigated , the normal procedure is applied nothing special actually they calculate the moment of inertia of a t-beam part by part and from m.c/I they solve the problem. I want to ask that in the calculation of moment of inertia an extra minus term which they added all the first moment of inertias and multiplied it by the center of mass value, what's this term is all about? i really doesn't see this term in any kind of inertia calculation.(adsbygoogle = window.adsbygoogle || []).push({});

Thank you for your help.

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# Moment of inertia minus term

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