Answer: τθ.
- A τθ
- B τ/θ
- C τθ²
- D τ/θ²
Correct answer: A. τθ
Explanation: W = τ × θ (rotational analogue of W = F × d for translational work).
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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