Lever, bar, and mechanics why does this happen?

  • #1
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!
 

Answers and Replies

  • #3
A.T.
Science Advisor
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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!
Discussed here many times, search for "mechanical advantage".
 

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