Chapter 14, Problem 38P

(a)

To determine

The air drag force on a car of mass $2300\text{ kg}$, frontal area $2.8{\text{ m}}^2$ and a drag coefficient of $0.60$, which is travelling at a speed of $24\text{ m/s (55 mi/h)}$.

(b)

To determine

The air drag force on a car of mass $2300\text{ kg}$, frontal area $2.8{\text{ m}}^2$ and a drag coefficient of $0.60$, which is travelling at a speed of $\text{31 m/s (70 mi/h)}$.