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Pressure - correct statements?

  1. May 1, 2013 #1
    1. The problem statement, all variables and given/known data

    In my notes it states that at a point in fluid, pressure act equally in all directions. While at a wall fluid act perpendicular at a wall.

    Why ?
    2. Relevant equations

    Pressure = force/area

    3. The attempt at a solution

    Can you please explain to me the reasons behind this
     
  2. jcsd
  3. May 1, 2013 #2

    mfb

    User Avatar
    2016 Award

    Staff: Mentor

    At a wall, pressure still acts in all directions - but if you want to consider pressure on the wall, only the direction perpendicular to the wall is relevant. If you want to consider forces in the wall, things are different, as the wall is solid.
     
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