Two bodies each have mass and radius about their centres
PHYSICS · Subjective · AP · Physics 1: Algebra-based · Torque and Rotational Dynamics · Torque and Rotational Dynamics
Problem
Two bodies each have mass M and radius R about their centres. Body A is a thin circular ring, while body B is a solid disc. About the common central axis perpendicular to their plane, which body possesses the greater radius of gyration? Give a brief reason for your answer.