Two blocks are connected by a negligible mass string passing over a frictionless pulley of radius R = 0.1 m and moment of inertia I = 0.02 kgm2. A 64.8 N horizontal force acts on the 8.00−kg object. The 8 kg block moves to the right with a constant linear acceleration a. The coefficient of kinetic friction between the horizontal surface and the 8 kg block μk is 0.5. Determine (a) the linear acceleration a of the system, (b) T1 and T2 the tensions in the two parts of the string.