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Find moment of inertia of a disc about an axis parallel to its plane and passing through its center of mass (see figure-8).

Kamendra kumar 4th Jan, 2022

Answer (1)

Kamendra kumar 4th Jan, 2022

We already know that, Icom= MR2/2

By perpendicular axis theorem formula, Iz=Ix+Iy

=> MR2/2= 2ID, as the ring is symmetrical, thus Ix=Iy=ID

=>ID=(14)MR2

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