A string is wrapped around a solid cylinder with a radius of 2.0 cm and no appreciable friction in its axle. The solid cylinder is initially not turning. A constant force of 50 N is applied to the string, which does not slip, causing the solid cylinder to rotate and the string to unwind. The string unwinds through a length s=|Δx|=1.2 m in time Δt=4.9 s. (See figure at the right). Part 1 (a) Through what angle in radians does the solid cylinder rotate during the 4.9 s?
