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Mechanics

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 Joined: 28 May 2011 Post: 4
28 May 2011 18:16:55 IST
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how i find moment of inertia of disc perp.to plane of disc throgh c.m.
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how i find moment of inertia of disc perp.to plane of disc throgh c.m.

Blazing goIITian

Joined: 22 May 2009
Posts: 2467
19 May 2012 13:38:48 IST
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1) dm*x^2=I

this would be the moment of a ring at the distance x.

3)dm=2pixdx*@

@ is the mass density.

Now put it and integrate the moment would be mr^2/2

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