How do we find out that the moment of inertia about the hinges of a door with a width(adsbygoogle = window.adsbygoogle || []).push({}); wisI=M w.^{2}/3

I find it like this in a book and also in table for the moments of inertia of homogeneous rigid objects with different geometries (about a long thin rod with rotation axis trough end).

Thank you.

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# Homework Help: Moment of inertia for door hinges

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