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Homework Help: Atwood with friction

  1. Nov 14, 2009 #1
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    (10kg mass) Mass M
    Friction of the disk: Us=Uk=0.2 between rope and disk.

    Excuse my drawing. Basically it's an atwood machine with a 10kg on one side and M on the other. What is the largest and smallest M that can have the system motionless? If M = 20kg what is its acceleration?

    I got 104/9.6=10.83 for max and 96/10.4=9.23 for min? And a = 2.933?
  2. jcsd
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