Question

The drag coefficient of a car at the design conditions of 1 atm, 70°F, and 60 mi/h is to be determined experimentally in a large wind tunnel in a full-scale test. The frontal area of the car is 22.26 ft^{2}. If the force acting on the car in the flow direction is measured to be 68 lbf, determine the drag coefficient of this car.

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Mechanical Engineering

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