Tuesday, 31 July 2012


Definition
Pressure is the amount of perpendicular or normal force per unit area acting on a surface. It is also known as the effect of a force applied to a surface. The symbol of pressure is p.

Formula

Mathematically:
p = \frac{F}{A}\ \mbox{or}\ p = \frac{dF_n}{dA}
where:
p = pressure,
A = area of the surface area on contact

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