Physics

Problem

A bicycle wheel (treated as a rigid hoop) has rotational inertia

0.25\,\text{kg}\,\!\cdot\!\text{m}^2

. Starting from rest, it must reach an angular speed of

12\,\text{rad}\,\text{s}^{-1}

2.0\,\text{s}

. Determine the magnitude of the constant net torque that must be applied.