Understanding Hydraulic Lifts: Cross-Sectional Area and Piston Size Explained

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Cross-sectional area refers to the area of a slice through an object, in this case, the area of a piston viewed from the front. For hydraulic lifts, this area is crucial for understanding how force is transmitted through the system. The formula for calculating the area of a circular piston is A=πr². In the discussed hydraulic lift, one piston has a cross-sectional area of 5 cm² and the other 650 cm². Understanding cross-sectional area is essential for grasping the mechanics of hydraulic systems.
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what does cross sectional area mean?

A hydraulic lift has two connected pistons with cross-sectional areas 5 cm2 and 650 cm2. It is filled with oil of density 720 kg/m3.

Is it the diameter? I don't know
 
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mattmannmf said:
what does cross sectional area mean?

A hydraulic lift has two connected pistons with cross-sectional areas 5 cm2 and 650 cm2. It is filled with oil of density 720 kg/m3.

Is it the diameter? I don't know

The cross sectional area in this case is the same as the area of a circle

A=pi*r^2

Cross-sectional area means pretty much what it says, the area of a cross-section of the item. In this case a piston. So if you think about a section of a piston and look at it head on, its just a circle.
 
ok thanks
 

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