The flywheel of an automobile engine, which is rigidly attached to the crankshaft, is equivalent to a 20-diameter, 0.75-in-thick steel plate. Determine the magnitude of the couple exerted by the flywheel on the horizontal crankshaft as the automobile travels around an unbanked curve of 600-ft radius at a speed of 60 mi/h, with the flywheel rotating at 2700 rpm. Assume the automobile to have \

(a) A rear-wheel drive with the engine mounted longitudinally,

(b) A front-wheel drive with the engine mounted transversely. (Specific weight of steel = 0.284 lb/in3.)