The drag coefficient $C_d$ is a quantity with no units. It is used to compare the drag on different cars at different speeds. It is defined by the equation $C_d = \\frac{2F}{\\rho v^n A}$, where $F$ is the drag force on the car, $\\rho$ is the density of the air, $A$ is the cross-sectional area of the car and $v$ is the speed of the car. Determine the value of $n$?
- A1
- B2
- C3
- D4