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 Friction is the force resisting the relative motion of solid surfaces, fluid

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jancancook



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Date d'inscription : 15/02/2011

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MessageSujet: Friction is the force resisting the relative motion of solid surfaces, fluid    Friction is the force resisting the relative motion of solid surfaces, fluid  Icon_minitimeMar 29 Mar - 3:40

Friction is the force resisting the relative motion of solid surfaces, fluid layers, and/or material elements sliding against each other. There are several types of friction:

* Dry friction resists relative lateral motion of two solid surfaces in contact. Dry friction is subdivided into static friction between non-moving surfaces, and kinetic friction between moving surfaces.

* Fluid friction describes the friction between layers within a viscous fluid that are moving relative to each other.[1][2]
* Lubricated friction is a case of fluid friction where a fluid separates two solid surfaces.[3][4][5]

* Skin friction is a component of drag, the force resisting the motion of a solid body through a fluid.

* Internal friction is the force resisting motion between the elements making up a solid material while it undergoes deformation.[2]


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MessageSujet: Re: Friction is the force resisting the relative motion of solid surfaces, fluid    Friction is the force resisting the relative motion of solid surfaces, fluid  Icon_minitimeLun 15 Aoû - 14:19

Coulomb (1785). Leonhard Euler (1707-1783) derived the angle of repose of a weight on an inclined plane and first distinguished between static and kinetic friction.[8] Arthur Morrin (1833) developed the concept of static friction. Osborne Reynolds (1866) derived the equation of viscous flow. This completed the classic model of friction (static, kinetic, and fluid) commonly used today in engineering.[6]

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