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Homework Help: Friction force on block

  1. Feb 20, 2008 #1
    Block A in the figure weighs 64.2N . The coefficient of static friction between the block and the surface on which it rests is 0.30. The weight is 11.3N and the system is in equilibrium.

    The picture is a block A, sitting on a table. A string is attached horizontally and then the string breaks off into two seperate strings. one connects to the wall with a angle of 45 degrees upward. and the other goes straight down with a weight on the end of it that weighs 11.3 N.

    a)Find the friction force exerted on block A.
    b)Find the maximum weight for which the system will remain in equilibrium.
  2. jcsd
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