Problem:
A 2650-lb car is traveling at sea level at a constant speed. Its engine is running at 4500 rev/min and is producing 175 ft-lb of torque. It has a drive train efficiency of 90%, a drive axle slippage of 2%, 15-inch-radius wheels, and an overall gear reduction ratio of 3 to 1.
Required:
Question: If the car's frontal area is 21.5 ft2, what is its drag coefficient?
Note: Explain all steps comprehensively.