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Rearranging a SUVAT Equation

  1. Apr 18, 2016 #1
    Hello everyone,

    Please can someone help me rearrange this equation to make t the subject:

    upload_2016-4-18_18-35-35.png


    Relevant equations:
    upload_2016-4-18_18-35-45.png



    My attempt at a solution:
    upload_2016-4-18_18-36-25.png

    Thank you all for you help
     
  2. jcsd
  3. Apr 18, 2016 #2

    SammyS

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    Not such good Algebra.
    0.5 is a factor. It's not added or subtracted.

    You start with
    ##s=-\frac12 at^2 ##

    Multiply both sides by ##\displaystyle \ -\frac2a\ ##
     
  4. Apr 18, 2016 #3

    SteamKing

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    You probably should take a few minutes to review basic algebra before going any further with physics. :wink:
     
  5. Apr 18, 2016 #4
    lol, thanks guys. It's been years since I've done this kind of stuff! I've totally forgotten what to do when there's a negative number involved.

    Appreciate the help @SammyS and @SteamKing
     
  6. Apr 18, 2016 #5

    SammyS

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    You're welcome.

    It's more a matter that the numbers are all multiplied, rather than that there is a negative.
     
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