Question
How does moment of inertia differ from inertia?
Solution
Inertia is the ability due to which a body itself does not change the state of rest or uniform motion in a straight line in the absence of external force.
Moment of inertia is the ability due to which the body itself does not change the state of rest or uniform circular motion in the absence of external torque.
Mass is the measure of inertia whereas moment of inertia depends upon mass and radius of gyration.
