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Rotational motion homework question

  1. Apr 6, 2009 #1
    1. The problem statement, all variables and given/known data
    A disk with a radial line painted on it is mounted on an axle perpendicular to it and running through its center. It is initially at rest, with the line at q0 = -90°. The disk then undergoes constant angular acceleration. After accelerating for 3.1 s, the reference line has been moved part way around the circle (in a counterclockwise direction) to qf = 130°.

    Given this information, what is the angular speed of the disk after it has traveled one complete revolution (when it returns to its original position at -90°)?

    |w| = rad/s

    2. Relevant equations



    3. The attempt at a solution

    287.6785532 thats the answer i got, but i do not know how to convert it to rad/s
     
  2. jcsd
  3. Apr 6, 2009 #2

    rl.bhat

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    Homework Helper

    Multiply by pi/180
     
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