How Does a Hydraulic Jack Work?

Answer

A jack pump applies pressure on the hydraulic fluid when activated which fills the cylinder and this pressure comes out as force which builds up and pushes the jack and lifts the load.
1 Additional Answer
The force of a hydraulic is explained in Pascal?s principle which state that a force applied to an enclosed fluid is transferred equally throughout the entire fluid. When the jack is pumped it exerts pressure on the fluid continuously until the fluid has enough pressure to push up the jack and whatever rests on it.
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