Circluar Motion Involving Rotations Per Minute

  1. Jan 7, 2009 #1
    1. The problem statement, all variables and given/known data

    What is the magnitude of the acceleration of a speck of clay on the edge of a potter's wheel turning at 40 rpm (revolutions per minute) if the wheel's diameter is 35 cm?

    2. Relevant equations

    v=2(pi)(r)/t a=(v^2)/r

    3. The attempt at a solution

    2(3.14)(.175)/.67 = 1.099

    (1.099^2)/.175=a
     
  2. jcsd
  3. Jan 7, 2009 #2

    LowlyPion

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    Homework Helper

    Welcome to PF.

    Isn't your period 1.5 instead of .67?

    You only get 40 revs per min so a rev should be longer than a sec no?
     
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