Question Detail
Question
A wheel of radius 60 cm has a moment of inertia of 5 kg·m². A constant force of 60 N is applied at a tangent to the rim. Assuming it starts from rest, how much work is done in 4 s?
Correct Answer
Option B is the correct answer.
Detailed Explanation
The work done is approximately 2070 J.
Hint
Work done equals the change in rotational kinetic energy. First find angular acceleration using τ = Iα.