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Jacks & Hydraulics: If a fluid (liquid or gas) is pressurised, the pressure is constant throughout the
system if the fluid is not moving. This applies to hydraulic jacks as though the fluid is moving, it moves
slowly and pressure variations are minimal to unnoticeable. The force generated by pressu... 

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Work: If this jack lifts 900lb through 6", how much work is done? W = Fs (s = distance) = 900
(6/12) = 450 lb.ft How much extra hydraulic fluid is needed in the chamber? V = mezh = n(1.125/2)?(6.00)
= 5.9641 in3 How far must the small piston move to deliver this much oil? H = V/(mr?) = 5.9... 

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Lever: There's 100 lb at the small piston, but it's operated by a foot pedal. How much force is at the
pedal? 11.00 -.97 100 lb EMA = 0 = F(11.00) - 100(.97) F = 100(.97)/11.00 = 8.82lb

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Load = 10 Tons Large Cylinder lifts load g" 18.0' -2.0* #3.00* 77727 #.50" - Small Cylinder
stroke Z is 13" 36" of " Line Problems: What does the pressure in the oil need to be to
lift 10tons? What is the force at the small cylinder? What is the force, F, at the end of the le...