Question

Moment of inertia of a semicircular disc of mass m and radius r about an axis passing through centre of curvature and perpendicular to the plane of disc is

Answer 1

Answer:

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. Let the moment of inertia of semicircular disc is I1. The disc may be assumed as combination of two semicircular parts. I1=I2=Mr22.