Solving a problem in physics section 30 point 57 mechan

57. A round cone with half-angle α = 30 ° and the base radius R = 5,0 cm rolls uniformly without sliding on the horizontal plane, as shown in Fig .. The top cone is fixed pivotally at the point G, which is on a level with the point C - center of the base of the cone. The speed of the point C is equal to υ = 10,0 cm / s. Find modules: a) the angular velocity of the cone: b) the angular acceleration of the cone.