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Analyzing motion diagrams (easy)

  1. Sep 22, 2009 #1
    1. The problem statement, all variables and given/known data

    If i have a picture of a motion diagram of 2 objects , how do i tell when they have the same speed and acceleration?
    and at what time one object is ahead of Object B ?

    I have a diagram here
    http://i33.tinypic.com/28kpk02.jpg

    2. Relevant equations
    none


    3. The attempt at a solution


    Since they are both moving in the same direction I see the B is moving in constant speed
    (same amount of displacement in each equal intervals of time)
    So they may have the same speed at t=1 and t=4 OR they may have the same speed in between t=1 and t=4 ? Just cant figure Which.
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Sep 22, 2009 #2

    kuruman

    User Avatar
    Homework Helper
    Gold Member

    Try again. At t=1 and t=4 they have the same position not the same velocity. Look for equal displacements (differences in position) over the same time interval.
     
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