(Automotive) Drag force is the force exerted on a moving vehicle that’s caused by air resi...

(Automotive) Drag force is the force exerted on a moving vehicle that’s caused by air resistance. The formula for this force is as follows:

Fd is the drag force (lbs).

Cd is the coefficient of drag (dimensionless).

A is the vehicle’s front area (ft2).

ρ is the air density (lb/ft3).

V is the vehicle’s velocity (ft/sec). 

a. Using this formula, write, compile, and run a C++ program that determines the drag force on a vehicle having a front area of 30 ft2 and a drag coefficient of .26 that’s moving at a velocity of 60 mi/hr (88 ft/sec). Although air density depends on both temperature and altitude, assume an air density of .0077 lb/ft3, which is the air density at sea level at 59° F. Your program should use the symbolic name DRAG_COEF for the coefficient of drag and AIRDENSITY for the air density.

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b. After verifying that your program is working correctly, use it to determine the drag force on a car with a front area of 20 ft2. All other variables should remain the same as in Exercise a.