The moment of inertia of a thin circular ring of mass and radius about its symmetry…

PHYSICS · Single correct · AP · Physics 1: Algebra-based · Torque and Rotational Dynamics · Torque and Rotational Dynamics

Problem

The moment of inertia of a thin circular ring of mass

M

and radius

R

about its symmetry axis is

I

. If the radius is doubled while the mass remains the same, the new moment of inertia about the same axis will be (a)

8I

(b)

4I

(c)

I

(d)

2I