Question

What is the moment of inertia of a disc ?

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.hi​

Answer 1

Moment of inertia of disc about an axis passing through center and perpendicular to plane is 1/2(M×R^2) where M is mass of disc and R is radius.

MI(moment of inertia) about axis passing through tangent and perpendicular to plane is (3/2) MR^2 (using principle of parallel axes)

MI about axis passing through diameter in plane of disc is (1/4) MR^2 (using principle of perpendicular axes)

MI about axis passing through tangent, in plane of disc is (5/4) MR^2 (using principle of parallel axes)