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Velocity Time graphs and Displacements

  1. Jan 14, 2009 #1
    1. The problem statement, all variables and given/known data
    How do i figure out the TOTAL displacement of this graph
    http://img186.imageshack.us/img186/7677/36947032we7.jpg [Broken]

    2. Relevant equations

    I'm guessing A=1/2bh
    and A = bh

    3. The attempt at a solution

    I've got no idea due to the line crossing the X axis
    Last edited by a moderator: May 3, 2017
  2. jcsd
  3. Jan 14, 2009 #2
    ask yourself what velocities you're seeing. velocities include direction.

    the Y - axis is telling you the velocity of the object, whereas the x axis is telling you the time. you can tell the y axis is velocity because of the negative values towards the bottom of the y axis. you cant see the negative values but they're there. remember the equation v = d/t :)
  4. Jan 14, 2009 #3
    the line crossing the x-axis is simply the line that tells you the 0 point. it plays no significance unless your graphing line passes it. at the point that it passes that horizontal x axis line, that would tell you your velocity is 0 m/s.
  5. Jan 14, 2009 #4
    This problem is quite common in classrooms. The answer, along with the proper work, can be found at "www.youtube.com/watch?v=Yu_moia-oVI"[/URL].
    Last edited by a moderator: Apr 24, 2017
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