Question

Moment of inertia of disc about diameter

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.

@Scarletttt❤

Answer 2

The moment of inertia of a point mass with respect to an axis is defined as the product of the mass times the distance from the axis squared. The moment of inertia of any extended object is built up from that basic definition