Answer: mass, axis and its distribution.
- A mass, axis and its distribution
- B its total mass only
- C the angular velocity of the body
- D the net external torque applied
Correct answer: A. mass, axis and its distribution
Explanation: Moment of inertia depends on the total mass, how that mass is distributed about the axis, and the position of the axis - not on angular velocity or torque.
Torque about axis O equals the force F multiplied by the perpendicular distance r⊥ from the axis to the line of action of the force, producing rotation.
Concept context
Moment of inertia, torque, angular momentum, rolling motion. Very high JEE weightage.
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