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Homework Help: Newtons 1st and 2nd Laws Mastering Physics

  1. Sep 28, 2007 #1
    1. The problem statement, all variables and given/known data

    You are conducting an experiment inside an elevator that can move in a vertical shaft. A load is hung vertically from the ceiling on a string. The tension in the string is measured to be 10% less than the weight of the load. No other forces are acting on the load. Which of the following statements about the elevator are correct? (> 1 can be correct)

    A.The elevator is an inertial frame of reference.
    B.The elevator is not an inertial frame of reference.
    C.The elevator may be at rest.
    D.The elevator may be moving at a constant velocity upward.
    E.The elevator may be moving at a constant velocity downward.
    F.The elevator must be accelerating.

    2. Relevant equations

    Newtons 1st and second laws

    3. The attempt at a solution

    B and F
  2. jcsd
  3. Sep 28, 2007 #2

    Doc Al

    User Avatar

    Staff: Mentor

    Looks good to me.
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