Apunching operation, performed by a cranked punch, requires 300] of work which is consumed during 30° of crankshaft movement. the torque pattern is rising steadily (from 0nm of torque) for 10, constant for 10 and then falling steadily (back to 0nm of torque) for a further 10° of crankshaft movement. the remaining 330° of crankshaft movement involves no work. the shaft on which the flywheel is fitted rotates at a mean speed of 200rpm, and is permitted to vary 5% in this application. determine the necessary moment of inertia the flywheel must have, given that the other parts of the machine contribute 1.5 kg. m^2 referred to the flywheel shaft.