The retarding forces which act on the race car are the drag force FD and a nonaerodynamic force FR. The drag force is where CD is the drag coefficient, is the air density, v is the car speed, and S = 30 ft2 is the projected frontal area of the car. The nonaerodynamic force FR is constant at 200 lb. With its sheet metal in good condition, the race car has a drag coefficient CD = 0.3 and it has a corresponding top speed v = 200 mi/hr. After a minor collision, the damaged front-end sheet metal causes the drag coefficient to be
What is the corresponding top speed
of the race car?
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