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Finding angular acceleration from revolutions and velocity

  1. Feb 8, 2017 #1
    1. The problem statement, all variables and given/known data
    an object starts from rest and has a final angular velocity of 6 rad/s. the object makes 2 complete revolutions. find the object's angular acceleration.

    2. Relevant equations
    wf^2=wi^2+2αd

    3. The attempt at a solution
    Not sure what to do with the revolutions, would it take act as the distance traveled? I am not given the radius, so the most I can do is:
    6^2=0+2α(2rev*2π)
    α=1.43rad/s^2
    I'm not given the answer for this question so I am not sure if I am right or extremely wrong
     
  2. jcsd
  3. Feb 8, 2017 #2

    haruspex

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    Looks good.
     
  4. Feb 8, 2017 #3
    alright thank you!
     
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