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Rolling Resistance Coefficient Formula

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Rolling Resistance Coefficient is a measure of the resistance that occurs when a tire rolls on a surface, affecting the racing car's speed and fuel efficiency. Check FAQs

f r = \frac{a v}{r}

f_r - Rolling Resistance Coefficient?a_v - Distance of Opposing Torque from Vertical?r - Effective Wheel Radius?

Rolling Resistance Coefficient Example

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Here is how the Rolling Resistance Coefficient equation looks like with Values.

Here is how the Rolling Resistance Coefficient equation looks like with Units.

Here is how the Rolling Resistance Coefficient equation looks like.

0.014 = \frac{0.007}{0.5}

0.014 = \frac{0.007m}{0.5m}

0.014 = \frac{0.007}{0.5}

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Rolling Resistance Coefficient Solution

Follow our step by step solution on how to calculate Rolling Resistance Coefficient?

FIRST Step Consider the formula

f r = \frac{a v}{r}

Next Step Substitute values of Variables

∴

f r = \frac{0.007m}{0.5m}

Next Step Prepare to Evaluate

∴

f r = \frac{0.007}{0.5}

LAST Step Evaluate

∴

f r = 0.014

Rolling Resistance Coefficient Formula Elements

Variables

Rolling Resistance Coefficient

Rolling Resistance Coefficient is a measure of the resistance that occurs when a tire rolls on a surface, affecting the racing car's speed and fuel efficiency.

Symbol: f_r

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Rolling Resistance Coefficient

Distance of Opposing Torque from Vertical

Distance of Opposing Torque from Vertical is the distance from the vertical axis where the opposing torque is applied in a racing car's tire behavior.

Symbol: a_v

Measurement: LengthUnit: m

Note: Value can be positive or negative.

Formulas to find Distance of Opposing Torque from Vertical

Effective Wheel Radius

Effective Wheel Radius is the distance from the center of the wheel to the road, affecting the racing car's speed, handling, and overall performance.

Symbol: r

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Effective Wheel Radius

Other formulas in Tire Rolling and Slipping category

Go Rolling Radius of Tire

R w = \frac{2}{3} \cdot R g + \frac{1}{3} \cdot R h

Go Rolling Resistance at Wheels

F r = P \cdot f r

Go Gradient Resistance of Vehicle

F g = M v \cdot g \cdot \sin (α)

Go Traction Force Required to Climb Curb

R = G \cdot \cos (θ)

How to Evaluate Rolling Resistance Coefficient?

Rolling Resistance Coefficient evaluator uses Rolling Resistance Coefficient = Distance of Opposing Torque from Vertical/Effective Wheel Radius to evaluate the Rolling Resistance Coefficient, Rolling Resistance Coefficient formula is defined as a dimensionless value that expresses the resistance to motion of an object rolling on a surface, influenced by factors such as the surface roughness, load, and velocity, providing a crucial parameter in the design and optimization of wheeled vehicles and systems. Rolling Resistance Coefficient is denoted by f_r symbol.

How to evaluate Rolling Resistance Coefficient using this online evaluator? To use this online evaluator for Rolling Resistance Coefficient, enter Distance of Opposing Torque from Vertical (a_v) & Effective Wheel Radius (r) and hit the calculate button.

FAQs on Rolling Resistance Coefficient

What is the formula to find Rolling Resistance Coefficient?

The formula of Rolling Resistance Coefficient is expressed as Rolling Resistance Coefficient = Distance of Opposing Torque from Vertical/Effective Wheel Radius. Here is an example- 0.014 = 0.007/0.5.

How to calculate Rolling Resistance Coefficient?

With Distance of Opposing Torque from Vertical (a_v) & Effective Wheel Radius (r) we can find Rolling Resistance Coefficient using the formula - Rolling Resistance Coefficient = Distance of Opposing Torque from Vertical/Effective Wheel Radius.

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