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Speed from a distance vs. time graph

  1. Dec 14, 2016 #1
    1. The problem statement, all variables and given/known data
    capture1-jpg.110391.jpg

    2. Relevant equations


    3. The attempt at a solution
    I know velocity = distance/time and the steepest gradient means the maximum speed, and the gradient is steepest between 1 and 1.5 seconds with the change in distance being around 40cm so velocity = 40cm/0.5 = 80 cm per second.

    So my answers are nowhere near what they want.

    Where am I going wrong?
     

    Attached Files:

  2. jcsd
  3. Dec 14, 2016 #2

    TSny

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    Homework Helper
    Gold Member

    You want an estimate of the maximum instantaneous speed. You might need to "zoom in" to a much smaller interval of time where the graph is steepest.
     
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