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Physics problem; help me please

  1. Oct 20, 2005 #1
    A mule uses a rope to pull a box that weighs 3.0 times ten to the second newtons across a level surface with constant velocity. The rope makes an angle of thirty degrees above the horizontal, and the tension in the rope is one times ten squared newtons. What is the normal force of the floor on the box?

    I think I know how to do this problem but the main problem is that I don's know what a tension force is.
  2. jcsd
  3. Oct 20, 2005 #2
    The tension force is the force transferred through the rope
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