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Homework Help: An oil filled system- finding d

  1. Oct 2, 2016 #1


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    1. The problem statement, all variables and given/known data

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


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

    2. Relevant equations

    3. The attempt at a solution

    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 dont see it!

    The distance is 70cm. We did this one in class, but I still dont see it.
  2. jcsd
  3. Oct 2, 2016 #2


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    You have to make an assumption based on the appearance.
  4. Oct 2, 2016 #3


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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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