Find the moment of inertia of a uniform half-disc about an axis perpendicular to the plane and passing through its centre of mass. Mass of this disc is M and radius is R.

Radius of gyration of disc rotating about an axis perpendicular to its plane passing through its centre is (If R is the radius of disc)

Two uniform semicircular discs, each of radius R , are stuck together to form a disc. Masses of the two semicircular parts are M and 3M . Find the moment of inertia of the circular disc about an axis perpendicular to its plane and passing through its centre of mass.

The moment of inertia of a solid sphere of radius R about an axis passing through its diameter is /. The sphere is melted and recast into a circular disc of thickness frac{R}{3} . The moment of inertia of this disc about an axis perpendicular to plane and passing through its centre of mass is

The moment of inertia of a solid sphere of radius R about an axis passing through its diameter is I. The sphere is melted and recast into a circular disc of thickness frac{R}{3} . The moment of inertia of this disc about an axis perpendicular to plane and passing through its centre of mass is

The moment of inertia of a uniform semicircular disc of mass M and radius r about a line perpendicular to the plane of the disc through the center is

The moment of inertia of a uniform semicircular disc of mass M and radius r about a line perpendicular to the plane of the disc through the center is