Lever, bar, and mechanics why does this happen?

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SUMMARY

The discussion centers on the mechanics of levers, specifically the concept of mechanical advantage. When the fulcrum is positioned closer to the load (Alpha), the effort required by the other participant (Beta) decreases significantly, illustrating the principle of leverage. This phenomenon is explained by the relationship between the distances from the fulcrum to the effort and load, which directly affects the force needed to lift the load. Understanding these principles is crucial for applying lever mechanics in practical scenarios.

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  • Basic understanding of physics principles, particularly levers
  • Familiarity with the concept of mechanical advantage
  • Knowledge of force and torque calculations
  • Understanding of the lever arm and its impact on force distribution
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John McDon
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two saipens one known as Alpha who is on the left and the other on right Beta are present, Alpha first presses down on a bar and Beta has to use all of its strength to lift Alpha's hand a distance h a distance, in this scenario the fulcrum is placed close to Beta, now in the next scenario it is the opposite that Beta finds it very easy since the fulcrum is now closer to Alpha, why does this happen please give a detailed physics perspective for this concept for me to understand thanks!
 
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John McDon said:
two saipens one known as Alpha who is on the left and the other on right Beta are present, Alpha first presses down on a bar and Beta has to use all of its strength to lift Alpha's hand a distance h a distance, in this scenario the fulcrum is placed close to Beta, now in the next scenario it is the opposite that Beta finds it very easy since the fulcrum is now closer to Alpha, why does this happen please give a detailed physics perspective for this concept for me to understand thanks!
Discussed here many times, search for "mechanical advantage".
 

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