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Homework Help: Double rotation

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

    http://img84.imageshack.us/img84/6206/imgpk.jpg [Broken]

    ω1 = 3 rad/s
    ω2 = 4 rad/s
    α1 = 0 rad/s2
    α2 = 0 rad/s2
    Find the angular acceleration of BC.

    2. Relevant equations

    3. The attempt at a solution

    α = dω/dt = dω1/dt + dω2/dt = 0 + α2 + ω1×ω2 = 5k - 12j
    Last edited by a moderator: May 4, 2017
  2. jcsd
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