(a) How much power does a motorcycle need to produce 72.0 lb ft of torque while the engine crankshaft rotates at 30000 rpm?
(b) When shifted into a higher gear, the same amount of power rotates the engine crankshaft at 5000 rpm. How much torque does the engine produce in this higher gear?
(c) Using your knowledge of power, torque and angular speed, explain why a motorcycle should be in a low gear when climbing a steep hill.