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Homework Help: Displacement problem

  1. Mar 8, 2010 #1
    1. The problem statement, all variables and given/known data
    http://img52.imageshack.us/img52/5412/displacement.jpg [Broken]


    3. The attempt at a solution
    First I calculated the equation for the line using point-slope form. I got y = 3x-9. Then I found angula velocity at 8 seconds, which turned out to be 15 rad/s. Then I drew the complete graph and calculated area for the top triangle and the bottom triangle. For the top triangle I got a distance of 37.5 rad and for the bottome triangle I got a distance of 13.5 rad. To calculate displacement, I subtracted the area of the bottome triangle to the area of the top triangle and got 24 rad. Is this correct?
     
    Last edited by a moderator: May 4, 2017
  2. jcsd
  3. Mar 8, 2010 #2

    Galileo

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    Yes, that's correct.
     
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