Question

5.
Discuss the necessity of radius of
gyration. Define it. On what factors does
it depend and it does not depend? Can
you locate some similarity between the
centre of mass and radius of gyration? what can you infer if a unicorn ring and a uniform disc have the some redius of gyration​

Answer 1

Answer:

Radius of gyration or gyradius of a body about an axis of rotation is defined as the radial distance to a point which would have a moment of inertia the same as the body's actual distribution of mass, if the total mass of the body were concentrated.

Answer 2

Answer:   The radius of gyration depends on various factors like the size and shape of the body, configuration of its axis of rotation, the body's position and distribution of the mass with regard to its axis of rotation. The radius of gyration is the root mean square distance of the object from its center of gravity .