The connecting rod of an internal combustion four time engine is 22.5 mm long and has a mass 1.6 kg. The mass of the piston and gudgeon pin is 2.4 kg and the stroke is 150 mm. The cylinder bore is 112.5 mm. The center of gravity of the connecting rod is 1.50 mm from the small end. Its radius of gyration about the centre of gravity for oscillations in the plane of swing of the connecting rod is 87.5 mm. Determine the torque on crankshaft to overcome the inertia of moving parts, by ANALYTICAL method, when the crank is at 40° and the piston is moving away from inner dead center under an effective gas pressure of 1.8 MN/m2. The engine speed is 1200 rpm.