Hydraulic pressure is the same throughout the inside of a set of brake lines. What determines the amount of resulting mechanical force is the size of the piston in the wheel cylinder or caliper. For example: 100 psi of fluid pressure acting against a caliper piston
with 4 square inches of surface area will result in 400 lbs of clamping force.
A fluid line with 200 psi in it acting against a piston with 3 square inches of area would result in 600 lbs of force.
A fluid line with 50 psi acting on a larger piston with 12 square inches of surface area would result in 600 lbs of force, and so on...
How much fluid pressure would it take to lift a 6000 lb truck on a lift with a 60 quare inch piston (such as on an automotive lift)?
Give your answer and try to justify your answer using an equation or formula.. Pressure x surface area equals mechanical force,
or... force divided by surface area equals fluid pressure