Question Detail
Question
A torque is applied to a flywheel, causing it to rotate. The work done by the torque as the flywheel rotates through an angular displacement Δθ is given by
Correct Answer
Option B is the correct answer.
Detailed Explanation
The work done by a constant torque τ in rotating an object through an angular displacement Δθ (in radians) is given by W = τ Δθ. This is the rotational analog of the translational work formula W = F Δx.
Hint
Recall that work is force times displacement. For rotation, torque is analogous to force, and angular displacement is analogous to linear displacement.