Two pulleys of different size (a motor pulley, r_{1} = 80 mm, and a machine pulley, r_{2} = 300 mm) are connected by a flat belt. The tight-side and slack-side tensions are 500 N and 350 N. The machine shaft runs at 1450 rpm. Determine the torque on, and the power transmitted through, the machine shaft. (answers in N·m and kW)