QUESTION 2 A flat belt drive is used to transfer power from a pulley of diameter 0.09 m to another pulley that is twice the diameter and located such that the two shafts are separated by a distance that is 5 times the diameter of the drive pulley. The torque delivered at the drive pulley is 1.3 Nm and the coefficient of friction between the belt and pulleys is 0.2. Find the minimum pre-tension required to avoid slip. Centrifugal effects may be ignored.