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Graphs that result after the tickertape timer - cart - inclined plane experiment

  1. Oct 1, 2009 #1
    1. The problem statement, all variables and given/known data
    Plot a displacement-time, velocity-time, and acceleration-time graph for a wheeled cart that rolls down an inclined plane.

    Already finished the displacement-time graph, but am questioning the correctness of the v-t and a-t graphs. What should they look like? (Like d-t graph is an under curve)

    Thanks
     
  2. jcsd
  3. Oct 2, 2009 #2

    tiny-tim

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    Science Advisor
    Homework Helper

    Welcome to PF!

    Hi xoposo! Welcome to PF! :wink:
    They're very simple!

    But you go first … tell us what you think, and then we'll comment. :smile:
     
  4. Oct 2, 2009 #3
    Uhm. I think the v-t graph would be a straight diagonal line while the a-t graph is a straight horizontal line.
    The v-t graph was a bit off though, since the tangents were hard to do on a small graph. I'm kinda worried that the final result'll be wrong.
    Thanks ;D
     
  5. Oct 2, 2009 #4

    Delphi51

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    Correct!
    You must expect experimental error and it can be quite large on the time and acceleration graphs.

    Are you measuring the slope of tangent lines on the distance graph to get the speeds? Usually the measurements of the dots on the tickertape are used to find the speed values for the graph. The distance between dots is divided by the time between dots.
     
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