Coefficient of kinetic friction: Difference between revisions
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The coefficient of kinetic friction is a dimensionless scalar and does not need units. | The coefficient of kinetic friction is a dimensionless scalar and does not need units. | ||
==External links== | |||
===Instructional video links=== | |||
* [http://www.youtube.com/watch?v=cKUzHgBI_GY&NR=1 coefficient of kinetic friction (video on Youtube)] | |||
Revision as of 01:22, 19 January 2010
Template:Constitutive coefficient
Definition
Given two surfaces, the coefficient of kinetic friction or coefficient of dynamic friction between them is the constant such that, for small speeds of slipping of two bodies with these two as the surfaces of contact, the kinetic friction between the two bodies is times the normal force between the two bodies.
The coefficient of kinetic friction is usually slightly, but not much, smaller than the limiting coefficient of static friction.
Units and dimensions
The coefficient of kinetic friction is a dimensionless scalar and does not need units.