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Physics 11 problem 10

  1. Dec 10, 2006 #1
    1. The problem statement, all variables and given/known data
    An 845N sled is is pulled a distance of 185m. The taskt requires 1.20 x 10^4J of work and is done by pulling a rope with a force of 125N. At what angle is the rope held

    2. Relevant equations
    W=Cos(of theta) Fd

    3. The attempt at a solution

    I know how to do this question if im given an angle but i don't really know what to do when im supposed to be finding the angle.
  2. jcsd
  3. Dec 10, 2006 #2
    theta = arccos(W/(F*d)) is how you'd find the angle given that eqn.
  4. Dec 10, 2006 #3
    is the right answer 1.0 degrees?
  5. Dec 10, 2006 #4


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    No. You were given the correct equation , please show how you arrived at your answer.
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