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Need help rearranging an equation

  1. Mar 11, 2009 #1
    not sure how to do this one.
    please help?
    d=1/2 at2
    solving for a
     
  2. jcsd
  3. Mar 11, 2009 #2
    To solve for something means to isolate that thing on the left side of the equation.

    d = (1/2) a t^2
    Swap sides,
    (1/2) a t^2 = d
    Multiply by 2, divide by t^2,
    (2/t^2)*(1/2) a t^2 = (2/t^2) d
    Clear fractions and reduce,
    a = 2 d/t^2
    and the equation is solved for a.

    You really need to learn algebra!
     
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