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The mass of a uniform circular ring of r...

The mass of a uniform circular ring of radius `0.2m` is `0.1kg`. Calcuate the moment of inertia of the ring about an axis passing through its centre an perpendicular to its surface.

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`I=MR^(2)`
`I=0.1xx(0.2)^(2)`
`=0.1xx0.04`
`=4xx10^(-3)kgm^(2)`
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