What do you mean by radius of gyration? Is radius of gyration a constant quantity?

Asked by Topperlearning User | 11th Aug, 2014, 01:51: PM

Expert Answer:

For any body rotating about a given axis, it is possible to find a radial distance from the axis where, if the whole mass of the body is supposed to be concentrated, its moment of inertia remain unchanged. This radial distance is called radius of gyration.

Radius of gyration is not a constant quantity but its value changes with change of location of axis of rotation.Its value depends on shape and size of the body, position and configuration of the axis of rotation and also on distribution of mass of the body with respect to the axis of rotation.

Answered by  | 11th Aug, 2014, 03:51: PM