Hydraulic press in 3D

Change the effort and the areas of the two pistons.

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Questions students ask

How does a hydraulic press multiply force?

Pressure is passed on equally through the liquid, so force = pressure × area is larger on the bigger piston.

Why must there be no air in hydraulic brakes?

Air is compressible, so pressing the pedal would squash the air instead of passing on the pressure.

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