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Homework Help: Irodov Problem

  1. Jan 21, 2008 #1
    I've got a problem here from Irodov (it is a very well known physics book).
    1.121) A body of mass m was slowly hauled up the hill by a force F which at each pont was directed along a tangent to the trajectory. Find the work performed by this force, if the height of the hill is h, the lenght of its base l, and the coefficient of friction K.

    There is picture, but is not necessary 'cause the text of the problem is enough.
    Anyway, I didn't understand why the body has no acceleration when it is being hauled by the force F. And why it is said that the body was slowly hauled?
  2. jcsd
  3. Jan 21, 2008 #2

    Doc Al

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    Staff: Mentor

    Presumably, F is just the applied force needed to overcome the other forces acting on the body, not the net force. Assume that "slowly hauled" means no acceleration.
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