Define radius of gyration.

Draw a graph between moment of inertia and radius of gyration.

Calculate the radius of gyration of a rod of mass 100 g and length 100 m about an axis passing through is centre of gravity and perpendicular to its length.

Prove the result that the velocity v of translation of a rolling body (like a ring, disc, cylinder or sphere) at the bottom of an inclined plane of a height h is given by v^2=(2gh)/(1+k^2//R^2) using dynamical consideration (i.e. by consideration of forces and torques). Note k is the radius of gyration of the body about its symmetry axis, and R is the radius of the body. The body starts from rest at the top of the plane.

On what factors the radius of gyration depend.

Define radius ratio.

Is radius of gyration of a body a constant quantity?