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Homework Help: Elevator problem

  1. Nov 12, 2011 #1
    1. The problem statement, all variables and given/known data

    An elevator cable can hold a maximum of 10kN and has a maximum accelleration of 2m/s2. Determine the maximum mass of the elevator and participants.

    i need some help, cant figure this out at all. thanks in advance
  2. jcsd
  3. Nov 12, 2011 #2
    The obvious thing here is to use F = ma
    You know F and you know a.... find m.
    If you get stuck get back to me
  4. Nov 12, 2011 #3
    I tryed putting them just straight in but that does not work.

    I forgot to put the multiple choice, it might help

    A. 1050kg
    B. 1280kg
    C. 0.8466kg
    D. 1.28kg
    E. 890kg
    F. 10009.81kg
    G. 846.74kg
    H. 9.901kg
    I. 650kg
  5. Nov 12, 2011 #4


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    Identify the magnitude and direction of the forces acting on the elevator, both known and unknown. There are 2 forces acting in the vertical direction. Find the net force, and use Newton's 2nd law, F_net = ma.
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