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Homework Help: Atwood machine

  1. Jun 12, 2007 #1
    1. The problem statement, all variables and given/known data
    Simple question I'm sure, but I want clarification if possible. If you do an experiment with the Atwood machine and you need to calculate 'g', should it be close to 9.8 m/s^2 ?

    2. Relevant equations

    No equations necessary, theoretical question. I would think the Atwood machine is trying to demonstrate that g is actually 9.8m/s^2 ?

    3. The attempt at a solution
  2. jcsd
  3. Jun 12, 2007 #2
    In reality, the pulley and string have mass, so the experimental acceleration will be less than the theoretical acceleration of the system
  4. Jun 12, 2007 #3
    My 'g' is calculated to be about 7.1 m/s^2, so its good to know it should be less than 9.8.
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