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Coefficient of Friction Formula

GoCoefficient of Friction using Forces Formula

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The Coefficient of Friction (μ) is the ratio defining the force that resists the motion of one body in relation to another body in contact with it. Check FAQs

μ = \frac{F lim}{R n}

μ - Coefficient of Friction?F_lim - Limiting Force?R_n - Normal Reaction?

Coefficient of Friction Example

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Here is how the Coefficient of Friction equation looks like with Values.

Here is how the Coefficient of Friction equation looks like with Units.

Here is how the Coefficient of Friction equation looks like.

0.3337 = \frac{2.15}{6.4431}

0.3337 = \frac{2.15N}{6.4431N}

0.3337 = \frac{2.15}{6.4431}

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Coefficient of Friction Solution

Follow our step by step solution on how to calculate Coefficient of Friction?

FIRST Step Consider the formula

μ = \frac{F lim}{R n}

Next Step Substitute values of Variables

∴

μ = \frac{2.15N}{6.4431N}

Next Step Prepare to Evaluate

∴

μ = \frac{2.15}{6.4431}

Next Step Evaluate

∴

μ = 0.333690304356599

LAST Step Rounding Answer

∴

μ = 0.3337

Coefficient of Friction Formula Elements

Variables

Coefficient of Friction

The Coefficient of Friction (μ) is the ratio defining the force that resists the motion of one body in relation to another body in contact with it.

Symbol: μ

Measurement: NAUnit: Unitless

Note: Value should be less than 1.

Formulas to find Coefficient of Friction

Limiting Force

Limiting Force is the friction generated when two surfaces come in contact with each other.

Symbol: F_lim

Measurement: ForceUnit: N

Note: Value should be greater than 0.

Formulas to find Limiting Force

Normal Reaction

Normal Reaction is the force exerted by a surface on an object in contact with it which prevents the object from passing through the surface.

Symbol: R_n

Measurement: ForceUnit: N

Note: Value should be greater than 0.

Formulas to find Normal Reaction

Other Formulas to find Coefficient of Friction

Go Coefficient of Friction using Forces

μ = \frac{F c \cdot \tan (θ f) + P t}{F c - P t \cdot \tan (θ f)}

Other formulas in Others and Extra category

Go Total Torque Required to Overcome Friction in Rotating Screw

T = W \cdot \tan (ψ + Φ) \cdot \frac{d m}{2} + μ c \cdot W \cdot R c

How to Evaluate Coefficient of Friction?

Coefficient of Friction evaluator uses Coefficient of Friction = Limiting Force/Normal Reaction to evaluate the Coefficient of Friction, Coefficient of Friction formula is defined as a dimensionless value that determines the amount of frictional force generated between two surfaces in contact, with a higher value indicating greater friction and a lower value indicating less friction, and is used to predict the amount of frictional force that will be generated in a given situation. Coefficient of Friction is denoted by μ symbol.

How to evaluate Coefficient of Friction using this online evaluator? To use this online evaluator for Coefficient of Friction, enter Limiting Force (F_lim) & Normal Reaction (R_n) and hit the calculate button.

FAQs on Coefficient of Friction

What is the formula to find Coefficient of Friction?

The formula of Coefficient of Friction is expressed as Coefficient of Friction = Limiting Force/Normal Reaction. Here is an example- 0.795425 = 2.15/6.4431.

How to calculate Coefficient of Friction?

With Limiting Force (F_lim) & Normal Reaction (R_n) we can find Coefficient of Friction using the formula - Coefficient of Friction = Limiting Force/Normal Reaction.

What are the other ways to Calculate Coefficient of Friction?

Here are the different ways to Calculate Coefficient of Friction-

Coefficient of Friction=(Centripetal Force*tan(Angle of Friction)+Tangential Force)/(Centripetal Force-Tangential Force*tan(Angle of Friction))

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