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Angular motion problem

  1. Oct 25, 2008 #1
    The wheel on an upside down bike moves through 15 rad in 5 seconds. What is the wheel's angualr acceleration if its initial angular speed is 2.4 rad/s. Answer in units of rad/s^2

    I used the equation ω(final) = ω(initial)+αt and solved for α however, I did not get a correct answer. Can anyone help?
  2. jcsd
  3. Oct 25, 2008 #2


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    Hi xregina12,

    Can you show what numbers you used and what you did? They don't give you the final angular speed, so that equation by itself would have two unknowns.
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