A leather belt transmits 10 kW from a motor running at 600 rpm by an open-belt drive. The diameter of the driving pulley of the motor is 350 mm, centre distance between the pulleys 4 m and speed of the driven pulley 180 rpm. The belt weighs 1100 kg/m3 and the maximum allowable tension in the belt is 2.5 N/mm2. μ = 0.25. Find the width of the belt assuming the thickness to be 10 mm. Neglect the belt thickness to calculate the velocities.