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Resistance force during ground roll Formula

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Rolling Resistance (or Rolling friction) is the force resisting the motion of a rolling body on a surface. Check FAQs

R = μ r \cdot (W - F L)

R - Rolling Resistance?μ_r - Coefficient of Rolling Friction?W - Weight?F_L - Lift?

Resistance force during ground roll Example

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Here is how the Resistance force during ground roll equation looks like with Values.

Here is how the Resistance force during ground roll equation looks like with Units.

Here is how the Resistance force during ground roll equation looks like.

5 = 0.1 \cdot (60.5 - 10.5)

5N = 0.1 \cdot (60.5N - 10.5N)

5 = 0.1 \cdot (60.5 - 10.5)

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Resistance force during ground roll Solution

Follow our step by step solution on how to calculate Resistance force during ground roll?

FIRST Step Consider the formula

R = μ r \cdot (W - F L)

Next Step Substitute values of Variables

∴

R = 0.1 \cdot (60.5N - 10.5N)

Next Step Prepare to Evaluate

∴

R = 0.1 \cdot (60.5 - 10.5)

LAST Step Evaluate

∴

R = 5N

Resistance force during ground roll Formula Elements

Variables

Rolling Resistance

Rolling Resistance (or Rolling friction) is the force resisting the motion of a rolling body on a surface.

Symbol: R

Measurement: ForceUnit: N

Note: Value can be positive or negative.

Formulas to find Rolling Resistance

Coefficient of Rolling Friction

Coefficient of Rolling Friction is the ratio of the force of rolling friction to the total weight of the object.

Symbol: μ_r

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Coefficient of Rolling Friction

Weight

Weight Newton is a vector quantity and defined as the product of mass and acceleration acting on that mass.

Symbol: W

Measurement: ForceUnit: N

Note: Value can be positive or negative.

Formulas to find Weight

Lift

The Lift, lifting force or simply lift is the sum of all the forces on a body that force it to move perpendicular to the direction of flow.

Symbol: F_L

Measurement: ForceUnit: N

Note: Value should be greater than 0.

Formulas to find Lift

Other formulas in Take Off category

Go Coefficient of rolling friction during ground roll

μ r = \frac{R}{W - F L}

Go Weight of aircraft during ground roll

W = (\frac{R}{μ r}) + F L

Go Lift acting on aircraft during ground roll

F L = W - (\frac{R}{μ r})

Go Ground effect factor

ϕ = \frac{{(16 \cdot \frac{h}{b})}^{2}}{1 + {(16 \cdot \frac{h}{b})}^{2}}

How to Evaluate Resistance force during ground roll?

Resistance force during ground roll evaluator uses Rolling Resistance = Coefficient of Rolling Friction*(Weight-Lift) to evaluate the Rolling Resistance, Resistance Force During Ground Roll is a measure of the force opposing an aircraft's movement during the ground roll phase of takeoff or landing, calculated by multiplying the rolling friction coefficient by the weight of the aircraft minus the force of lift. Rolling Resistance is denoted by R symbol.

How to evaluate Resistance force during ground roll using this online evaluator? To use this online evaluator for Resistance force during ground roll, enter Coefficient of Rolling Friction (μ_r), Weight (W) & Lift (F_L) and hit the calculate button.

FAQs on Resistance force during ground roll

What is the formula to find Resistance force during ground roll?

The formula of Resistance force during ground roll is expressed as Rolling Resistance = Coefficient of Rolling Friction*(Weight-Lift). Here is an example- 4.984 = 0.1*(60.5-10.5).

How to calculate Resistance force during ground roll?

With Coefficient of Rolling Friction (μ_r), Weight (W) & Lift (F_L) we can find Resistance force during ground roll using the formula - Rolling Resistance = Coefficient of Rolling Friction*(Weight-Lift).

Can the Resistance force during ground roll be negative?

Yes, the Resistance force during ground roll, measured in Force can be negative.

Which unit is used to measure Resistance force during ground roll?

Resistance force during ground roll is usually measured using the Newton[N] for Force. Exanewton[N], Meganewton[N], Kilonewton[N] are the few other units in which Resistance force during ground roll can be measured.

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Resistance force during ground roll Formula

Resistance force during ground roll Example

Resistance force during ground roll Solution

Resistance force during ground roll Formula Elements

Other formulas in Take Off category

How to Evaluate Resistance force during ground roll?

FAQs on Resistance force during ground roll

Variable Name