Wheel braked by a constant torque

A wheel with moment of inertia $2.5\mathrm{kg}\cdot {\mathrm{m}}^2$ about its own axis turns at $90\text{rpm}$. A brake applies a constant torque of $3.0\mathrm{N}\cdot \mathrm{m}$ that opposes the rotation; the friction of the axle is negligible. Compute the stopping time and the number of revolutions made during braking.