A roller (mass m, mass moment of inertia Os, radius r) is wrapped around by a rope. A block (mass m2) is connected to the center of gravity of the roller by a massless rod. The block and the roller slide downwards on the rough inclined plane (coefficient of friction H). a) What acceleration i does the roller center of gravity experience? b) What is the maximum coefficient of friction u that a sliding motion starts from rest? Given: r, a, m1 = m2= m, Os, µ, g.

A roller (mass m, mass moment of inertia Os, radius r) is wrapped around by a rope. A block (mass m2) is connected to the center of gravity of the roller by a massless rod. The block and the roller slide downwards on the rough inclined plane (coefficient of friction H). a) What acceleration i does the roller center of gravity experience? b) What is the maximum coefficient of friction u that a sliding motion starts from rest? Given: r, a, m1 = m2= m, Os, µ, g.