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Circular kinematics question

  1. Oct 9, 2009 #1
    1. I have a circular kinematics question that I am not sure how to solve part of. I have a radius of.27m, and the wheel rotates three full circles a second. The first part of the question asked me to solve for velocity and I got 5.09m/s. I have to find acceleration in m/s^2. I am not allowed to use degrees only radians.



    2. The four kinematics equations rearranged for polar coordinates.



    3. Part one was ((2*Pi*3*27m)=5.09m/s I am not sure how to proceed with the acceleration[/b
     
  2. jcsd
  3. Oct 9, 2009 #2

    rock.freak667

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    Do you know the equation governing centripetal acceleration?
     
  4. Oct 12, 2009 #3
    (V^2)/r but that would make the acceleration 96.0 m/s^2 isn't that a large acceleration?
     
    Last edited: Oct 12, 2009
  5. Oct 12, 2009 #4

    rock.freak667

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    yes that is what it would be, but you must realize that it is making 3 revolutions in 1 second. which is quite fast.
     
  6. Oct 12, 2009 #5
    Thank you so much!
     
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