Question 3 4 out of 10 points A concentric compound gear train has four gears mounted on three shafts as shown below, with the teeth numbers as given. The output shaft is coupled to a conveyor belt pulley requiring a power input of 151.0 kW, while the input shaft is driven at is driven at 996.0 RPM. There is negligible friction torque on the input shaft. If both the intermediate and output shaft experience the same friction torque, and the gearbox efficiency is 98.6 %, calculate the magnitude of this friction torque, expressing your answer in units of Nm to one decimal place. Output 3 24 teeth Input 1 40 teeth 60 teeth 20 teeth 2