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Rotational Equilibrium and Dynamics Question

  1. Jan 3, 2006 #1
    1) If you go to this site it has the question already set up. the one I need help on is question number 62, the picture frame one. I know that the answers are already given but I want to know how this is set up.

    http://www.phys.uvic.ca/vannetten/phys102/Assignments/t1a9p.pdf

    2) A uniform ladder 8.00 m long and weighing 200.0 N rests against a smooth wall. The coefficient of static friction between the ladder and the ground is 0.600, and the ladder makes a 50 degree angle withthe ground. How far up th eladder can an 800.0 N person climb before the ladder begins to slip?

    Thanks in advance
     
    Last edited: Jan 3, 2006
  2. jcsd
  3. Jan 3, 2006 #2
    Sum the moments about the line passing through T2 and P (This will eliminate both), this will give you the tension for T1. Now Sum moments at the line through T2 and T1 to find P (this will eliminate T2 and T1), and then sum forcess to find P.
     
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