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!

Homework Help: Fluid flow problem with the momentum balance equation

  1. Sep 20, 2012 #1
    All problem info, and my work is done in the attached pdf.

    Basically, I'm not sure that I have done it correctly.

    Attached Files:

  2. jcsd
  3. Sep 21, 2012 #2
    What is the formula for the area of a circle in terms of diameter?
  4. Sep 21, 2012 #3

    So the answer is then:

    Fp = -[itex]\rho[/itex]vj2[itex]\frac{\pi}{4}[/itex](D12 - D22)
  5. Sep 21, 2012 #4
    Looks good to me.
  6. Sep 21, 2012 #5

    rude man

    User Avatar
    Homework Helper
    Gold Member

    Comment: interesting problem; case where change in momentum is vΔm instead of the usual mΔv.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook