1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Fluid statics

  1. Sep 3, 2009 #1
    1. The problem statement, all variables and given/known data

    Why must F2=P2(deltaA)(-j hat) and the opposing force be F1=P1(deltaA)(+j hat). Prove that these are the only two possibilities that are true.



    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Sep 3, 2009 #2

    fluidistic

    User Avatar
    Gold Member


    Could you provide the picture of the situation please? Or at least describe the situation with words.
     
  4. Sep 3, 2009 #3

    Redbelly98

    User Avatar
    Staff Emeritus
    Science Advisor
    Homework Helper

    Welcome to PF klezzie13. In addition to explaining the problem better, you'll need to complete the Relevant equations and attempt at a solution portions of the homework template.

     
  5. Sep 3, 2009 #4
    you have a plane inside of a container of water. On the plane there is the force of gravity pointing downward. F2 must point downward and F1 must point upward. There is no acceleration within the system. F1,2≈ P1,2ΔA. Does that help?
     
  6. Sep 3, 2009 #5

    Redbelly98

    User Avatar
    Staff Emeritus
    Science Advisor
    Homework Helper

    I think we need to see the figure.
     
  7. Sep 3, 2009 #6
    here it is. Its pretty simplistic but hopefully you get the point.
     

    Attached Files:

  8. Sep 4, 2009 #7

    Redbelly98

    User Avatar
    Staff Emeritus
    Science Advisor
    Homework Helper

    Okay. What equation do you know that relates force and pressure?
     
  9. Sep 4, 2009 #8
    F/A=p
    F=Ap

    I think I figured it out
     
  10. Sep 4, 2009 #9

    Redbelly98

    User Avatar
    Staff Emeritus
    Science Advisor
    Homework Helper

    Yup, looks like you probably have :smile:
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Fluid statics
  1. Fluid Statics (Replies: 3)

  2. Fluid statics (Replies: 1)

  3. Fluid statics (Replies: 0)

  4. Fluid Statics (Replies: 2)

  5. Static Fluid (Replies: 4)

Loading...