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Pulley question(newtons third law)

  1. Oct 2, 2008 #1
    1. The problem statement, all variables and given/known data

    there is a pulley and on one side theres a man hanging on it he weights 60kg on the other side resting on the ground is a 100kg weight. what is the tension on the rope

    2. Relevant equations


    3. The attempt at a solution

    T-m1g=m1a T-m2g=m2a
    T=m1a+m1g T=m2a+m2g

    then i pulled in the numbers and got
    g=a which = 9.8 (gravity)

    and now im stuck.. i think i might have done somethign wrong can someone help?
  2. jcsd
  3. Oct 3, 2008 #2


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    Science Advisor
    Homework Helper

    Welcome to PF!

    Hi Jennifer001! Welcome to PF! :smile:

    Hint: the man is hanging … stationary … so a = 0. :wink:

    Try again! :smile:
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