Force induced by mass (very simple

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SUMMARY

The discussion focuses on the analysis of forces acting on a footpedal and a kicking mechanism, emphasizing the importance of understanding torque in relation to the pivot point of the wheel/hammer assembly. The user successfully identified the forces but expressed confusion regarding the derivation of the term L2/R1 following the gravitational force (mg). The solution provided clarifies that this term arises from the torque calculations about the pivot. Visual aids were referenced to support the explanation.

PREREQUISITES
  • Understanding of Free Body Diagrams (FBD)
  • Basic principles of torque and pivot points
  • Knowledge of gravitational force (mg)
  • Familiarity with mechanical systems involving levers
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  • Study the principles of torque in mechanical systems
  • Learn how to construct and analyze Free Body Diagrams (FBD)
  • Explore the relationship between force, mass, and acceleration in physics
  • Investigate the mechanics of levers and their applications in real-world scenarios
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Students studying physics, particularly those focusing on mechanics, as well as educators seeking to explain the concepts of force and torque in practical applications.

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Homework Statement


I'm supposed to draw a FBD with labeled forces of the footpedal and the actual kicking thingy (2 separate system)
http://img842.imageshack.us/img842/3812/capture2bf.png

Homework Equations


No equations really


The Attempt at a Solution


Well I got all of em right but for some reason I don't understand where the part after mg comes from. The whole L2/R1. I'm almost certain it's just a real simple explanation, I just had a brainfart :)
This is the solution:
http://img717.imageshack.us/img717/6926/capturefjf.png
 
Last edited by a moderator:
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Comes from the torque about the pivot of the wheel/hammer assembly above the pedal.
 

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