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Homework Help: Which one of the quantities below has dimensions equal to ML/T^2?

  1. Sep 14, 2010 #1
    1. The problem statement, all variables and given/known data
    Which one of the quantities below has dimensions equal to [ML/T2]?


    2. Relevant equations
    a. mv
    b. mv2
    c. mv2/r
    d. mvr
    e. mv2/r2


    3. The attempt at a solution

    I know that ML/T2 is for calculating force for circular motion (I believe)
    Therefore after breaking it all down I come to the following conclusions

    F = ma
    F = m x (v1-v2)/t1-t2
    THEREFORE Iam inclined to answer that c is the correct answer, but I am not sure if I am on the correct path, or in left field....
    CAN ANYONE HELP ME?
    1. The problem statement, all variables and given/known data



    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Sep 14, 2010 #2
    The answer is C.

    Velocity is just L/T. So V2 equals (L/T)2. R = L so one of the L's cancel and you are left with answer C.
     
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