Question

define radius of gyration​

Answer 1

Answer:

Radius of gyration is defined as the distance from the axis of rotation to a point where the total mass of the body is supposed to be concentrated, so that the moment of inertia about the axis may remain the same

Answer 2

$\textbf{ Radius of gyration }$:

It is defined as the distance from axis of rotation at which whole mass if the body to be concentrated, its MI about the given axis would be the same as with the distance of masses.