Aload of 2000kg is to be raised. the operator can apply a maximum effort of 735n and has a choice of 2 simple machines, see fig q2. a differential wheel and axle with a wheel diameter d= 650mm and axle diameters of d2 = 75mm and d1 = 50mm or a screw jack with a handle radius r = 380mm and screw pitch p = 25mm. i) determine which machine can be used without the risk of overhauling. (19 marks) ii) find the maximum safe load which can be raised by the machine which will overhaul with the 2000kg load.