The linkage for a hydraulic jack is shown. If the load on

Chapter 6, Problem 6-105

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QUESTION:

The linkage for a hydraulic jack is shown. If the load on the jack is 2000 lb, determine the pressure acting on the fluid when the jack is in the position shown. All lettered points are pins. The piston at H has a cross-sectional area of A = 2 in2 . Hint: First find the force F acting along link EH . The pressure in the fluid is p = F>A.

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QUESTION:

The linkage for a hydraulic jack is shown. If the load on the jack is 2000 lb, determine the pressure acting on the fluid when the jack is in the position shown. All lettered points are pins. The piston at H has a cross-sectional area of A = 2 in2 . Hint: First find the force F acting along link EH . The pressure in the fluid is p = F>A.

ANSWER:

Step 1 of 8

Our strategy here is that we will find the force acting along link EH  and divide it by the cross-sectional area of the piston to get the required pressure.

First we will draw the F.B.D of each element separately then apply the equilibrium equations, this will give us a direct solution to the unknown reactions that will help us to reach .

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