The ropes in (gure 1) are each wrapped around a cylinder, and the two cylinders are fastened together. The smaller cylinder has a diameter of 10 cm and a mass of 2.0 kg ; the larger cylinder has a diameter of 20 cm and a mass of 10 kg . Figure 1 of1 d 4.0 kg 7 Part A What is the angular acceleration of the cylinders? Assume that the cylinders turn on a frictionless axle. Express your answer in radians per second squared to two significant figures. Muest