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Quick question about forces

  1. Feb 27, 2009 #1
    Quick question about forces!!!

    1. The problem statement, all variables and given/known data

    A skier is sliding down a 15 degree slope. Friction is not negligible. Identify all forces on the skier.

    2. Relevant equations


    3. The attempt at a solution

    The choices are: Tension, Kinetic Friction, Weight, Static Friction, Thrust, and Normal Force.

    I drew a picture and assumed Kin. Friction, Weight, Thrust, and normal force were the answers but I got it wrong.

    I don't think static friction is the answer because that is used to determine the force that must be overcome to initiate movement. Tension seems like a cable or string thing and not something that would affect a skier. I guess I don't know what thrust is but would it be correct to say that K. Friction, weight, and N. Force are the only forces on the skier or am I missing something? Thank you for your help!!!
  2. jcsd
  3. Feb 27, 2009 #2
    Re: Quick question about forces!!!

    Any comments or thoughts would be appreciated =]
  4. Feb 27, 2009 #3


    User Avatar
    Homework Helper

    Re: Quick question about forces!!!

    Looks right.

    There might be thrust if they were pushing with their arms with their poles, but that sounds beyond the scope of the question.
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