Why dose v = d/t ?

  1. Aug 6, 2013 #1
    Why dose v = d/t ?
     
  2. jcsd
  3. Aug 6, 2013 #2

    Doc Al

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    Staff: Mentor

    Did you have some specific problem in mind?

    Average speed, by definition, equals distance/time.
     
  4. Aug 6, 2013 #3
    so, it could be also: v = d*t ?
     
  5. Aug 6, 2013 #4

    Doc Al

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    No. Those are not equivalent at all.

    Think how speed would be measured: meters per second, m/s, for example.
     
  6. Aug 6, 2013 #5
    why did you replace per with / ... ?
     
    Last edited: Aug 6, 2013
  7. Aug 6, 2013 #6

    Doc Al

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    That's what it means. I just translated everyday language into the more precise mathematical language.

    If your speed is 60 miles per hour, you can write that as 60 miles/hour.
     
  8. Aug 6, 2013 #7
    I got it... Thanks!
     
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