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Homework Help: Forces qns

  1. Apr 11, 2010 #1
    1. The problem statement, all variables and given/known data
    A wireless aerial attacheed to thee top of thee mast 20m high exerts a horizontal force of 600N on it.The mast is supported by a stay -wire running to the groung from a point 6m beow the top of the mast, and inclined at 60 degrees to the horizontal. Assuming that the reation of the ground can be regarded as a single force, draw a diagram of the forces acting on the mast and determine by calculation the force in the stay-wire.

    2. Relevant equations
    using of trigo method to find the normal contact force?

    3. The attempt at a solution trigo method to find vertical force. Given that angle is 6o degrees, i can find the hypothenus as well
  2. jcsd
  3. Apr 11, 2010 #2
    What are all the forces acting on the mast.
    The horizontal and the vertical components of these forces must balance.
    and the moments around the attachment of the rope must balance.
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