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Air Friction Calculator

Formula

The formula to calculate Air Friction (Fair) is:

$Fair = 0.5 \times p \times V^2 \times C \times A$

Where:

$Fair$ is the Air Friction (N)
$p$ is the density of the fluid (kg/m³)
$V$ is the speed of the object (m/s)
$C$ is the air resistance coefficient
$A$ is the cross-sectional area (m²)

What is Air Friction?

Air friction, also known as drag force, is the resistance force caused by the motion of a body through a fluid, such as air. The amount of air friction depends on factors like the speed of the object, the fluid's density, the object's cross-sectional area, and its shape, quantified by the air resistance coefficient.

Example Calculation

Let's consider an example:

Density of the Fluid (p): 1.225 kg/m³
Speed of the Object (V): 30 m/s
Air Resistance Coefficient (C): 0.47
Cross-Sectional Area (A): 2.5 m²

Using the formula to calculate Air Friction:

$Fair = 0.5 \times 1.225 \times 30^2 \times 0.47 \times 2.5 \approx 647.71 \, \text{N}$

This shows that with the given parameters, the air friction acting on the object is approximately 647.71 N.