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Uniform circular ring of radius 0.5 m ha...

Uniform circular ring of radius 0.5 m has a mass 10 kg and a uniform circular disc of the same radius has a mass 10 kg. Calculate their moment of inertia about an axis passing through the centre and perpendicular to the plane of a ring or a disc.

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The correct Answer is:
2.5 kg.`m^(2) ; 1.25 kg .m^(2)`
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