Question 523: Centre of Mass and Rotational Motion

Question

The moment of inertia of uniform circular disc is maximum about an axis perpendicular to the disc and passing through point
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Accepted Answer

Moment of Inertia $(\mathrm{I})=\mathrm{I}_{\mathrm{CM}}+\mathrm{Md}^2$
where $d$ is distance of axis from COM
The $\mathrm{I}_{\mathrm{CM}}$ and M is same for all the points and only ' d ' is varying
As axis B is having more distance from COM and thus will have more moment of inertia.

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A

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B

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C

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D

Centre of Mass and Rotational Motion

The moment of inertia of uniform circular disc is maximum about an axis perpendicular to the disc and passing through point

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