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FLUID MECHANICS
b) Pascal’s Law at Any Point
Pascal's law stated that pressure applied to an enclosed fluid will be transmitted without a
change in magnitude to every point of the fluid and to the walls of the container.
The pressure at any point in the fluid is equal in all directions.
3.1.2 Hydraulic Jack
A Hydraulic Jack is used to lift a heavy load with the help of a light force (refer
Figure 3.3). Below is a diagram of a hydraulic jack as Figure 3.2. A force, F is applied to the
piston of the small cylinder and forces oil or water out into the large cylinder thus, raising
the piston supporting the load, W.
Figure 3.2 : A Hydraulic Jack
Figure 3.3 : Pascal Principle
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