Kinetic friction force

Gives the friction force acting on a body sliding over a surface as the kinetic friction coefficient times the normal force pressing the surfaces together. It is used whenever an object slides rather than sticks.

F = \mu_{k} F_{n}

What the symbols mean

kinetic friction force (N)
coefficient of kinetic friction (dimensionless)
normal force between the surfaces (N)

About this formula

  • FieldPhysics
  • TopicClassical mechanics
  • LevelHigh school
  • Also calleddynamic friction force, kinetic friction, sliding friction force, friction force formula, dynamic friction, friction on sliding object
  • SourceWikidata Q4419098

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