# example 8-1 - Example 8-1 A force F1 of 150 N is applied to...

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Example 8-1 A force F 1 of 150 N is applied to a piston of diameter 6 cm as shown in the figure below. Calculate the force F 2 on the piston of diameter 12 cm if this system is stationary. Neglect the weight of the pistons. Solution: Equate the pressure just under the smaller piston face with the pressure in the other leg of the hydraulic lift at that same elevation. 12 atm atm FF P Pg AA h ρ += ++ 80 20 60cm h =−= 21 gh =− () 11 22 2 water FA g h A S G g h ρρ ⎛⎞ =−=− ⎜⎟ ⎝⎠

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2 2 2 1 1 0.06m 0.00283m 22 D A ππ ⎛⎞
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## This note was uploaded on 04/06/2009 for the course ENGR 2250 taught by Professor Borca-tasciuc during the Spring '08 term at Rensselaer Polytechnic Institute.

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example 8-1 - Example 8-1 A force F1 of 150 N is applied to...

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