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Determine Total Work done by the Force

  1. May 13, 2013 #1
    1. The problem statement, all variables and given/known data
    The collar moves on a curved track from position A to position B, and slides with neglible friction. A force F = 10 N acts upon the collar from position A to position B, and the direction of the force is always oriented θ = 35° with a positive x axis as shown. Determine the total work done by the force F on the collar from position A to position B.


    2. Relevant equations



    3. The attempt at a solution

    I tried finding the work done by the forces in the x and y directions.

    In the x direction there's:

    0.175*10cos(35) = 1.433 J

    0.1*10sin(35) = 0.574 J

    I then tried taking the magnitude of this, but the answer should be 8.60 J, which i obviously won't get.

    Any suggestions would be greatly appreciated.
     

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  2. jcsd
  3. May 13, 2013 #2
    What you have done is basically correct but what about the sign of of the work done in the vertical direction ? I think the answer would be 0.86 J.
     
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