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Homework Help: Centripetal acceleration centrifuge problem

  1. Feb 10, 2008 #1
    [SOLVED] centripetal acceleration problem

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

    Find the centripetal acceleration at the top of a test tube in a centrifuge, given that the top is 5.0 cm from the axis of rotation and that its linear speed is 76 m/s.

    2. Relevant equations

    Ac = v^2/r

    3. The attempt at a solution

    So for this equation I just plugged in the given numbers and came up with the answer 1155.2 m/s. I don't quite see what is wrong with my answer but i plugged it into masteringphysics and it said that the answer was wrong so i kept on trying the equation and kept on coming up with the same answer. Could someone tell me what I'm possibly doing wrong?


    Never mind. I was able to see that the radius was in centimeters instead of meters so I had to convert that and I got the right answer
    Last edited: Feb 10, 2008
  2. jcsd
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