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Tangential acceleration - unknown term

  1. Mar 9, 2009 #1
    1. The problem statement, all variables and given/known data

    A man walks steadily outwards on a turntable (radius r) with radial velocity v. The turntable rotates with angular velocity w and angular acceleration alpha (anti-clockwise). What is the tangential component of acceleration?

    2. Relevant equations

    radial acceleration = -rw^2
    tangential acceleration = r*alpha

    3. The attempt at a solution

    The answer given for the tangential acceleration is (r*alpha)+(2wv)
    I understand the r*alpha bit, but could someone please enlighten me as to what the 2wv part refers to?

    Thanks very much

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

    2. Relevant equations

    3. The attempt at a solution
  2. jcsd
  3. Mar 9, 2009 #2
    Have you learned about Coriolis force?
  4. Mar 9, 2009 #3
    I thought that Coriolis was where an object appeared to deviate from its path. How is it related to this problem?
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