What are the Three Kinds of Levers

Three Kinds of Levers


  1. First Kind of Lever:


In the first kind of lever, the fulcrum F is in the between the t, effort P and Weight W.




– Physical Balance

– Handle of Pump


– Pair of Scissors


– See Saw



  1. Second Kind of Lever:


In the second kind of lever, the weight W is in between the fulcrum F and effort P.






– Nut Cracker


-Punching Machine



  1. Third Kind of Lever:


In the third kind of lever, the effort P is in between the fulcrmn F and weight W.





– Human forearm

– Upper and Lower Jaws in the Mouth.

– A Pair of Forcipes


It is a hundred times better to spend one minute a day reading and read just one book a year than wasting time absorbing the pomace that destroys creative work that has taken someone months or years of work Working out the texts – with the eyes or with the ears? How are all currents better to perceive articles, books and other textual information with ears or eyes?

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