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Homework Help: Barrel of Fun - Circular Motion

  1. Nov 18, 2008 #1
    1. The problem statement, all variables and given/known data
    Given: The coefficient of static friction between the person and the wall is 0.66, the mass of the person is 73 kg, the radius of the cylinder is 7 m, and g = 9.8 m/s.
    A barrel of fun consists of a large vertical cylinder that spins about the vertical axis. When it spins fast enough, any person inside will be held up against the wall.
    Find ώc, the critical angular speed below which a person will slide down the wall of the cylinder. Answer in units of rad/s.

    2. Relevant equations
    Ac = V^2.r or ώ^2=Ac
    µ = ώ^2r/g

    3. The attempt at a solution
    So I used µ = ώ^2r/g and solved for ώ but it was wrong...
    That's basically it.
    What did I do wrong?
    Last edited: Nov 18, 2008
  2. jcsd
  3. Nov 18, 2008 #2
    nvm... got it...
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