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Homework Help: Find the volume of the solid obtained by rotating the region-2

  1. Jul 25, 2010 #1
    1. The problem statement, all variables and given/known data
    Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified line. Sketch the region, the solid, and a typical disk or washer. About x axis.

    y=sqrt(25-x2)
    y=0
    x=2
    x=4

    2. Relevant equations



    3. The attempt at a solution
    I drew a graph, region and solid. Please help me out with the disk.
    Jump start for any solution, please?
     

    Attached Files:

  2. jcsd
  3. Jul 25, 2010 #2
    I posted this in your other thread, here's the link: https://www.physicsforums.com/showthread.php?t=418382"

    This figure should give you some intuition on visualizing the disks.

    I don't really understand where your confusion lies, so if there is any please specify where and why.
     
    Last edited by a moderator: Apr 25, 2017
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