Describe how the rotational inertia of a point mass changes if

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

Problem

Describe how the rotational inertia of a point mass changes if (a) only the mass is doubled and (b) only the distance

r

from the axis is doubled. Express each change qualitatively (e.g., "doubles," "quadruples," "halved").