A light rope is wrapped around a wheel of radius 2.0 m and moment of inertia 8.0 kg-m2.The rope then passes over a small massless and frictionless...

 A light rope is wrapped around a wheel of radius 2.0 m and moment of inertia 8.0 kg-m2. The rope then passes over a small massless and frictionless pulley and a weight of 19.6 N is attached to the end of the rope as shown. (a) Find the tension in the rope. (b) Find the angular acceleration of the wheel.