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: Centroid Parabolic area

  1. Dec 13, 2007 #1
    [SOLVED] Centroid Parabolic area

    1. The problem statement, all variables and given/known data
    http://img227.imageshack.us/img227/7518/slowge9.th.jpg [Broken]
    Find the centroid of the area.

    2. Relevant equations

    3. The attempt at a solution

    I'm not quite sure what I'm screwing up on this problem, I can do other problems like when y = x^2. I have only shown my work for the x centroid, but I can't seem to get the answer (3/8b). Does anyone see where I messed up, I assume it's somewhere in the integral setup. I think dA = h-y dx is correct.
    Last edited by a moderator: May 3, 2017
  2. jcsd
  3. Dec 13, 2007 #2

    Shooting Star

    User Avatar
    Homework Helper

    The point (b,h) lies on the curve. Doesn't that suggest something, like a relationship between them, which you can put in the answer?
  4. Dec 14, 2007 #3
    Thanks for your reply, I figured it out
    Last edited: Dec 14, 2007
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook