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WE WILL SOLVE THE SAME PROBLEM AS PREVIOUS USING A “QUICK!” METHOD”.
Four equal masses, m, each is placed at the corners of a square of length (L) as shown in the figure. The moment of inertia of the system about an axis passing through A and parallel to DB would be =?

Previous video in this series can be seen at:
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https://youtu.be/m40ENzFzcHI