Question Detail
Question
A wheel of radius 60 cm has a moment of inertia of 5 kg·m². A 60 N force is applied tangentially. Work done in 4 s starting from rest?
Correct Answer
Option B is the correct answer.
Detailed Explanation
Work = Torque × angular displacement. Torque = F × r, angular displacement from α t² /2.
Hint
W = τ θ.