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Tension help?

  1. Sep 26, 2013 #1
    I'm doing a physics lab right now and to find tension we use the equation T=m(g-a) where m is the suspended mass and t is tension. I'm not sure if g should be negative or positive. I'm guessing negative but im not to sure.
  2. jcsd
  3. Sep 27, 2013 #2


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    The sign of "g" will depend on which direction you define "a" to be positive.
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