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Homework Help: Convert km/hr to m/s^2

  1. Sep 2, 2011 #1
    1. The problem statement, all variables and given/known data
    Convert 83km/hr to m/s^2


    2. Relevant equations
    Simple I know...but I still can't figure it out


    3. The attempt at a solution
    83km/hr(10^3m/km)(1hr/60min)(1min/60sec)

    The units cancel however leaving me with m/s not with m/s^2.

    The seconds^2 is what I cannot figure out.

    Thanks in advance!
     
  2. jcsd
  3. Sep 2, 2011 #2
    You can't convert km/hr to m/s^2.
     
  4. Sep 2, 2011 #3
    83 km/hr is not acceleration, it is a speed. Your answer is right. Are you sure that is what they want?
     
  5. Sep 2, 2011 #4

    Pengwuino

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    Gold Member

    Yah, m/s^2 is an acceleration, km/hr is a velocity. Must be a typo
     
  6. Sep 2, 2011 #5
    Peng, isn't it supposed to be speed instead of velocity? Velocity has a specified direction.
     
  7. Sep 2, 2011 #6
    Really? Must be a typo then...good to know that I'm not missing something obvious!
     
  8. Sep 2, 2011 #7

    Pengwuino

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    Gold Member

    Sigh...

    Doesn't matter. Don't troll.
     
  9. Sep 3, 2011 #8
    Shame on you peng :frown:

    I'll have a field day on this tomorrow on chat :biggrin:
     
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