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Force at Lever Fulcrum Pin is the force acting onto the fulcrum pin (the pivot about which a lever turns) used as a joint at a fulcrum point. Check FAQs
Rf=W2+P2-2WPcos(θ)
Rf - Force at Lever Fulcrum Pin?W - Load on lever?P - Effort on Lever?θ - Angle Between Lever Arms?

Reaction Force at Fulcrum of Lever given Effort, Load and Contained Angle Example

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With units
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Here is how the Reaction Force at Fulcrum of Lever given Effort, Load and Contained Angle equation looks like with Values.

Here is how the Reaction Force at Fulcrum of Lever given Effort, Load and Contained Angle equation looks like with Units.

Here is how the Reaction Force at Fulcrum of Lever given Effort, Load and Contained Angle equation looks like.

3159.7357Edit=2945Edit2+294Edit2-22945Edit294Editcos(135Edit)
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Reaction Force at Fulcrum of Lever given Effort, Load and Contained Angle Solution

Follow our step by step solution on how to calculate Reaction Force at Fulcrum of Lever given Effort, Load and Contained Angle?

FIRST Step Consider the formula
Rf=W2+P2-2WPcos(θ)
Next Step Substitute values of Variables
Rf=2945N2+294N2-22945N294Ncos(135°)
Next Step Convert Units
Rf=2945N2+294N2-22945N294Ncos(2.3562rad)
Next Step Prepare to Evaluate
Rf=29452+2942-22945294cos(2.3562)
Next Step Evaluate
Rf=3159.73567386719N
LAST Step Rounding Answer
Rf=3159.7357N

Reaction Force at Fulcrum of Lever given Effort, Load and Contained Angle Formula Elements

Variables
Functions
Force at Lever Fulcrum Pin
Force at Lever Fulcrum Pin is the force acting onto the fulcrum pin (the pivot about which a lever turns) used as a joint at a fulcrum point.
Symbol: Rf
Measurement: ForceUnit: N
Note: Value should be greater than 0.
Load on lever
Load on lever is the instantaneous load that is resisted by the lever.
Symbol: W
Measurement: ForceUnit: N
Note: Value should be greater than 0.
Effort on Lever
Effort on Lever is the force applied on the input of the lever to overcome the resistance to get the work done by the machine.
Symbol: P
Measurement: ForceUnit: N
Note: Value should be greater than 0.
Angle Between Lever Arms
Angle Between Lever Arms is the angle between the two arms of a lever or the contained angle between the arms.
Symbol: θ
Measurement: AngleUnit: °
Note: Value should be greater than 0.
cos
Cosine of an angle is the ratio of the side adjacent to the angle to the hypotenuse of the triangle.
Syntax: cos(Angle)
sqrt
A square root function is a function that takes a non-negative number as an input and returns the square root of the given input number.
Syntax: sqrt(Number)

Other Formulas to find Force at Lever Fulcrum Pin

​Go Reaction Force at Fulcrum of Right Angled Lever
Rf=W2+P2
​Go Reaction Force at Fulcrum of Lever given Bearing Pressure
Rf=Pbd1lf

Other formulas in Components of Lever category

​Go Maximum bending moment in lever
Mb=P((l1)-(d1))
​Go Bending stress in lever of rectangular cross section given bending moment
σb=32Mbπbl(d2)
​Go Bending stress in lever of rectangular cross section
σb=32(P((l1)-(d1)))πbl(d2)
​Go Bending stress in lever of elliptical cross section given bending moment
σb=32Mbπb(a2)

How to Evaluate Reaction Force at Fulcrum of Lever given Effort, Load and Contained Angle?

Reaction Force at Fulcrum of Lever given Effort, Load and Contained Angle evaluator uses Force at Lever Fulcrum Pin = sqrt(Load on lever^2+Effort on Lever^2-2*Load on lever*Effort on Lever*cos(Angle Between Lever Arms)) to evaluate the Force at Lever Fulcrum Pin, The Reaction force at fulcrum of lever given effort, load and contained angle is the reaction force acting onto the fulcrum of the lever as a result of the effort force and the applied force by the lever. Force at Lever Fulcrum Pin is denoted by Rf symbol.

How to evaluate Reaction Force at Fulcrum of Lever given Effort, Load and Contained Angle using this online evaluator? To use this online evaluator for Reaction Force at Fulcrum of Lever given Effort, Load and Contained Angle, enter Load on lever (W), Effort on Lever (P) & Angle Between Lever Arms (θ) and hit the calculate button.

FAQs on Reaction Force at Fulcrum of Lever given Effort, Load and Contained Angle

What is the formula to find Reaction Force at Fulcrum of Lever given Effort, Load and Contained Angle?
The formula of Reaction Force at Fulcrum of Lever given Effort, Load and Contained Angle is expressed as Force at Lever Fulcrum Pin = sqrt(Load on lever^2+Effort on Lever^2-2*Load on lever*Effort on Lever*cos(Angle Between Lever Arms)). Here is an example- 3159.736 = sqrt(2945^2+294^2-2*2945*294*cos(2.3561944901919)).
How to calculate Reaction Force at Fulcrum of Lever given Effort, Load and Contained Angle?
With Load on lever (W), Effort on Lever (P) & Angle Between Lever Arms (θ) we can find Reaction Force at Fulcrum of Lever given Effort, Load and Contained Angle using the formula - Force at Lever Fulcrum Pin = sqrt(Load on lever^2+Effort on Lever^2-2*Load on lever*Effort on Lever*cos(Angle Between Lever Arms)). This formula also uses Cosine (cos), Square Root (sqrt) function(s).
What are the other ways to Calculate Force at Lever Fulcrum Pin?
Here are the different ways to Calculate Force at Lever Fulcrum Pin-
  • Force at Lever Fulcrum Pin=sqrt(Load on lever^2+Effort on Lever^2)OpenImg
  • Force at Lever Fulcrum Pin=Bearing Pressure in Fulcrum Pin of Lever*Diameter of Lever Fulcrum Pin*Length of Lever Fulcrum PinOpenImg
Can the Reaction Force at Fulcrum of Lever given Effort, Load and Contained Angle be negative?
No, the Reaction Force at Fulcrum of Lever given Effort, Load and Contained Angle, measured in Force cannot be negative.
Which unit is used to measure Reaction Force at Fulcrum of Lever given Effort, Load and Contained Angle?
Reaction Force at Fulcrum of Lever given Effort, Load and Contained Angle is usually measured using the Newton[N] for Force. Exanewton[N], Meganewton[N], Kilonewton[N] are the few other units in which Reaction Force at Fulcrum of Lever given Effort, Load and Contained Angle can be measured.
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