An oil filled system- finding d

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The discussion revolves around calculating the force exerted by an oil-filled system on a cylinder at point A. The user successfully determined the oil pressure using the equation P = Po + F/A, arriving at a value of 1.79 X 10^5. However, they encountered difficulty in finding the distance from the oil pressure point (Po) to the top of point A, feeling that it should be a straightforward calculation. The conversation highlights the need to make assumptions based on visual cues, which the user initially found counterintuitive. Ultimately, the exchange emphasizes the importance of understanding pressure distribution in fluid mechanics.
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Homework Statement


[/B]
An oil filled system is shown in the figure below. The density of the oil is
m^3.gif
.

15.P34.jpg


In the figure(Figure 1)how much force does the fluid exert on the end of the cylinder at A?


Homework Equations

The Attempt at a Solution


[/B]
Solved for Poil using P = Po + F/A = 1.79 X 105. Simple enough.

Since pressure is the same across any level, we first have to first figure out the distance from Po to the top of A. This is where I am stuck. I feel like its something very simple but I just don't see it!

The distance is 70cm. We did this one in class, but I still don't see it.
 
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You have to make an assumption based on the appearance.
 
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This goes against everything I was ever taught, but as soon as you posted this it made sense. Thank you!
 

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