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Surface force denoted fs is the force that acts across an internal or external surface element in a material body. Surface force can be decomposed into two perpendicular components: normal forces and shear forces. A normal force acts normally over an area and a shear force acts tangentially over an area.
Equations for surface force
Surface force due to pressure
f = force, p = pressure, A = area on which a uniform pressure acts
Pressure is in
Area is a
Given a pressure of and an area of find the surface force due to pressure.
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