Unraveling the Mystery of Pulleys: Understanding Force and Distance Ratios

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SUMMARY

The discussion focuses on the mechanics of pulleys, specifically addressing the relationship between force and distance ratios. It highlights that when a rope is pulled, the force exerted is doubled, but the distance moved by the load is halved, maintaining the principle of work equivalence. The conversation emphasizes the confusion surrounding these concepts and encourages participants to present specific problems for clarification.

PREREQUISITES
  • Understanding of basic physics principles, particularly work and energy.
  • Familiarity with pulley systems and their mechanical advantages.
  • Knowledge of force measurements, specifically Newtons (N).
  • Ability to solve basic algebraic equations related to force and distance.
NEXT STEPS
  • Research the mechanical advantage of different types of pulleys.
  • Study the principles of work and energy conservation in physics.
  • Explore real-world applications of pulleys in engineering and construction.
  • Learn how to solve problems involving force and distance ratios in pulley systems.
USEFUL FOR

This discussion is beneficial for physics students, educators, and anyone interested in mechanical engineering principles, particularly those studying the functionality and applications of pulley systems.

ali PMPAINT
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Homework Statement
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Relevant Equations
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So, there are is a type which I couldn't understand.
1: (I don't know this type name is, so tell me please)
243384
243385

So, the books says if you push the rope, you will double your force, but instead, for every x distance you push, it will go x/2 distance(their work is the same), which I couldn't fiqure(How to spell the word?) out why. And when I think about it, I get to the weird conclusion that the rope must have increased its' size.
And it got much worse when I tried to solve this:
243388

(it is 1600N)
 

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I suggest that you pick one specific problem, take a crack at it, and show us where you are stuck.
 

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