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Homework Help: Find distance traveled using acceleration graph

  1. Sep 13, 2009 #1
    1. The problem statement, all variables and given/known data
    Here is a link to the graph.


    Find the distance traveled in the first 20 seconds.

    2. Relevant equations

    Integral once = velocity
    Integral twice = position

    I attempted to use the following formula:

    a = [ 2 ( x - x(sub-i) ) ] / 2

    3. The attempt at a solution

    When I integrated twice i came up with, 100m however this is incorrect
    Then I somehow came up with 137.5, this is incorrect.
    I attempted to use the following formula:

    a = [ 2 ( x - x(sub-i) ) ] / 2

    unfortunately I came up empty handed.

    Please help!! this problem is killing me.
    Thank you for your time.
  2. jcsd
  3. Sep 13, 2009 #2


    User Avatar
    Homework Helper

    While coming up with 137.5 m, I think, you have left out the distance traveled with uniform velocity during 10 to 15 seconds.
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