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!

Find force on a wall

  1. Feb 17, 2009 #1
    Air within the funnel of a large tornado may have a pressure of only 0.46 atm.
    What is the approximate outward force F on a 6.2m x 5.5m wall if a tornado suddenly envelopes the house? Atmospheric pressure is 1.013 x 10^5 Pa. Answer in units of N.

    I know that P= F/A, so F=PA. I tryed just multiplying the pressure and area, but that was not correct. I also tried converting atms to Pa and then multiplying; however, that was also incorrect.

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



    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Feb 17, 2009 #2

    LowlyPion

    User Avatar
    Homework Helper

    Welcome to PF.

    What pressure did you use to find the force?
     
  4. Feb 17, 2009 #3
    .46 atm.
    I mulitiplied .46 and 1.013 x 10^5 to convert atm to Pa. And I got 46598 Pa and then mulitiplied that by 34.1 m^2 (6.2m x 5.5m) to solve for the force.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook