Surface force denoted f_s is the force that acts across an internal or external surface element in a material body. Surface force can be decomposed in to two perpendicular components: pressure and stress forces. Pressure force acts normally over an area and stress force acts tangentially over an area.

Contents 1 Equations for surface force 1.1 Surface force due to pressure 2 Examples 2.1 Pressure related surface force 3 See also

[edit] Equations for surface force

[edit] Surface force due to pressure

f = Force p = pressure A = cross sectional area of the moving fluid

[edit] Examples

[edit] Pressure related surface force

Pressure is in
Area is a

Given a pressure of and an area of 20m² find the surface force due to pressure.

[edit] See also

• Body force

This physics-related article is a stub. You can help Wikipedia by expanding it. v • d • e