UTM UNIVERSIT TEKNOLOGI MALAYSA Question 3 A motor electric driving a punching machine produces a constant torque of 50 Nm on the flywheel, which rotates at a speed of 300 rpm. The variation of torque required by the operation of crank is shown. Based on the turning moment diagram, determine: i) Total number of punching operation can be produce in 1 hour ii) Maximum fluctuation of energy in one cycle operation iii) Maximum and minimum speed in one cycle if I = 10 kgm². 150 T (Nm) 50 t(s) 1 second