The drag force on a car is given by
where ρ is the density of air (1.23 kg ∕ m3), v is the velocity in units of m ∕ s, A is the projected area of the car (2.5 m2), and CD is the drag coefficient (0.2). The amount of power in watts required to overcome such drag force is P = FDv, and the equivalent horsepower required is Hp = P∕746. Write a
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