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: Integral Issue (Y-Axis) Solve for Volume

  1. Sep 3, 2011 #1
    Integral Issue (Y-Axis) Solve for Volume :)

    1. The problem statement, all variables and given/known data
    [PLAIN]http://img88.imageshack.us/img88/7091/unled4mo.jpg [Broken]

    2. Relevant equations

    pi [itex]\int[/itex] [itex]^{18}_{0}[/itex] 1/4 (19-y)[itex]^{2}[/itex]dy
    3. The attempt at a solution

    I've tried it a couple times, gotten 243/2 Pi

    Any and all help would be much appreciated :)

    I'm really having trouble integrating the equation above, im absolutely terrible with integrals so any help with that would be ideal
    Last edited by a moderator: May 5, 2017
  2. jcsd
  3. Sep 3, 2011 #2
    Re: Integral Issue (Y-Axis) Solve for Volume :)

    There are two ways to integrate this (I'm not sure what would be easier for you). Try foiling out your expression or using a substitution. Can you be more specific as to what you are having trouble with?

    You will certainly need to recall the power antidifferentiation rule for this problem.
  4. Sep 3, 2011 #3
    Re: Integral Issue (Y-Axis) Solve for Volume :)

    just googled that because i wasn't sure what it was.


    Thanks, i'll try it with this new-found knowledge :)
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook