Here they considered M.I. proportional to R^2
Here mass const not mentioned so option 2 should be correct to?
In class we were taught
I have seen this approach correct for most questions
Pls clarify once if option 2 is appropriate ans ?
@Yash-Kapoor here mass const not mentioned
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Someone PLS clarify my doubt
It is a mechanical device.
Yes, Mass is const. (Not given but mass varies with purpose/type. Flywheels stored the energy without changing its mass )