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Question regarding average velocity

  1. Feb 18, 2007 #1
    1. The problem statement, all variables and given/known data

    What is the average velocity if you drive a distance of 472.5 km at a speed of 40 km/h, then the same distance at a speed of 65 km/h? Answer in units of km/h.

    2. Relevant equations

    t = d / v

    3. The attempt at a solution

    11.8125 = 472.5 / 40
    7.269230769 = 472.5 / 65



    Not really sure where to go from here.
    I've done a few of these equations before, Im just having a brain block and I need to submit the answer to this problem by tonight.

    Someone just point me in the right direction. :P
     
  2. jcsd
  3. Feb 18, 2007 #2
    Haha wow that was so simple. Finally remembered.
    Got it. :P
     
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