# Drag Force

Written by Jerry Ratzlaff on . Posted in Fluid Dynamics

## Drag Force

Drag force or drag for any body moving through a fluid (gas or liquid), is the force exerted perpendicular and in opposition to the direction of travel.

### Drag Force Formula

$$F_D = \frac {1} {2} \rho v^2 C_D A$$

Where:

$$F_d$$ = drag force

$$\rho$$ = density

$$v$$ = velocity

$$C_d$$ = drag coefficient

$$A$$ = area

Tags: Equations for Force