Pressure from Force and Area
Pressure from Force and Area
\[P = \frac{F}{A}\]
Variables
P = pressure (Pa)
F = applied force (N)
A = contact area (m²)
Description
What is this formula?
This equation calculates pressure as the force applied perpendicular to a surface divided by the contact area. Pressure indicates how concentrated a force is over an area.
When to use it
Use this formula when analyzing hydraulic systems, structural loads, fluid systems, tire pressure, or surface stress problems.
Example
A force of 800 N is applied over an area of 0.2 m².
Data:
F = 800 N
A = 0.2 m²
Formula:
P = F/A
Substitution:
P = 800/0.2
Result:
P = 4000 Pa
Applications
Hydraulics, civil engineering, mechanical systems, fluid mechanics, industrial equipment, and material stress analysis.
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