1. The problem statement, all variables and given/known data A uniform cylinder of mass m and radius R rests in equilibrium against a rough plane that is inclined at an angle α to the horizontal. The cylinder is supported by a cord under a constant tension, wrapped round it, so that the cord leaves the surface of the cylinder tangentially and is horizontal; the plane of the cord is perpendicular to the axis of the cylinder. The axis of the cylinder is horizontal, and all the forces act in the same vertical plane. Model the cord as a model string, and take the coefficient of static friction between the cylinder and the plane as μ. The object of this question is to find the minimum value of the coefficient of friction for the cylinder to be in equilibrium. https://skydrive.live.com/redir?resid=4CDF33FFA97631EF!1040 I'm having problems drawing the force diagram. 3. The attempt at a solution I've made two diagrams, but I think they are both wrong. https://skydrive.live.com/redir?resid=4CDF33FFA97631EF!1041 Can you help?