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Homework Help: Derivations of dimensions problem

  1. Jul 4, 2009 #1


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    1. The problem statement, all variables and given/known data
    Dimensions: These derivations are not correct ( as stated by the book)

    I'm just reading my textbook at the moment and I saw this example ( So I don't have work for it myself by the book shows all the steps).

    ***√[L]/[L/T^2] =√[T^2]

    2. Relevant equations

    3. The attempt at a solution

    I just want this to be explained as the book does not explain it, it just shows steps.

    How does***√[L]/[L/T^2] equal √[T^2]?
  2. jcsd
  3. Jul 4, 2009 #2


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    Gold Member

    Re: Dimensions

    Do you mean [tex]
    \sqrt {\frac{{[L]}}{{\frac{{[L]}}{{[T]^2 }}}}} [/tex] ??
  4. Jul 4, 2009 #3


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    Re: Dimensions

  5. Jul 4, 2009 #4


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    Homework Helper

    Re: Dimensions


    Multiply both sides by T^2, simply, and you'll get the answer.
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