Friction Force

Friction Force

PE-01
ASPCSPFoundational

Formula
F = μN
When to Use

Calculate the frictional force opposing motion between two surfaces. Used in slip and fall analysis.

Symbol Legend
SymbolMeaningUnitNote
FFrictional forceN or lb
μCoefficient of frictionDimensionless; depends on surface materials
NNormal forceperpendicular to surfaceEquals weight on horizontal surface

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