Is hydraulic jack violation of thoermodynamics

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SUMMARY

The discussion clarifies the mechanics of hydraulic jacks, emphasizing the distinction between force and energy. When using a hydraulic jack, a user applies a smaller force over a greater distance to lift a heavier load, demonstrating the principle of mechanical advantage. Specifically, moving the jack handle down one foot results in the car being lifted only half an inch, illustrating that the force exerted is significantly less than the weight of the car. This aligns with the conservation of energy principle, which states that energy input must equal energy output, while force does not have a conservation law.

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when i use hydralick jack to lift up my car i put less energy and pick up heavey car ,so am i geting more by puting less in a hydralick system?
 
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You are confusing "force" with "energy". When you move the jack handle down, say one foot while the car goes up 1/2 inch then, since "energy" is "distance times force", (1/2)F= (12)f so that f= (1/24)F. To get the same energy you need only apply 1/24 the force. There is a "conservation of energy" law but there is no "conservation of force".
 

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