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How to Solve for atan when an object turns 60 degrees

  1. Nov 1, 2012 #1
    The problem statement, all variables and given/known data

    A flywheel with a radius of 0.200 starts from rest and accelerates with a constant angular acceleration of 0.900 .

    atan= .180 m/s2 when its at rest
    arad= 0m/s2 when at rest
    compute magnitude of resultant acceleration at the start a= .180 m/s2

    I got all of these already now the question is

    Compute the magnitude of the tangential acceleration of a point on its rim after it has turned through 60.0?

    atan= ? m/s2

    The attempt at a solution

    I do not know how to answer this. I honeslty dont know where to start.

    I know atan= [itex]\alpha[/itex]*radius but i dont know what to do now that the flywheel is turning 60
     
  2. jcsd
  3. Nov 1, 2012 #2
    Solved it.

    Turned out that i didnt need to worry about how far it moved so it was just Alpha*radius

    Giving me atan=.180m/s^2
     
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