A $3000-$lb car is driven at sea level $(\backslash$rho $=0\mathrm{.}002378$ slugs$/$ft$3)$ on a level paved surface. The

car has a $22$ ft$2$ frontal area. The top speed of the car is $140$ MPH and the torque produced at top

speed is $220$ lb$-$ft$.$ The mechanical efficiency of the drivetrain is $92\%,$ and the radius of the wheel

is $16$ in$.$ The gear reduction factor is $3\mathrm{.}5.$

Find: Calculate the drag coefficient