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How much work is done by tension?

  1. Sep 30, 2012 #1
    1. The problem statement, all variables and given/known data

    Let's say I tie a string to a clicker and swing it in a horizontal circle around my head at constant speed. How much work is done by the tension force due to the string when it goes all the way around one full circle?

    A. No work is done.

    B. The work equals the tension force times the radius.

    C. The work equals the tension force times the diameter.

    D. The work equals the tension force times the circumference.

    2. Relevant equations



    3. The attempt at a solution

    I am leaning towards D.
     
  2. jcsd
  3. Oct 1, 2012 #2

    ehild

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    Homework Helper
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    How do you calculate the work of a force F if the displacement D encloses an angle θ with the force?

    ehild
     
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