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Static Equilibrium Problem

  1. Feb 21, 2005 #1
    How do I do this problem? How do I start?
    Problem
    I drew all the Forces acting on the body and used Net Torque=0. I still can't find the right answer. So far none of my answers are close. I think my approach is wrong. Can someone give me any hints to help me solve it.
     
  2. jcsd
  3. Feb 21, 2005 #2

    Gokul43201

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    What you've done is essentially correct, but unless you show your calculations, there's no way we can tell you where you made the mistake.
     
  4. Feb 21, 2005 #3
    Net Torque CCW = Net Torque CW
    Mg(3m) = 470.4N(6m) I used the wheel as the fulcrum point.
    Mg= 940.8N
     
  5. Feb 21, 2005 #4

    Gokul43201

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    You do not know that the center of mass of the boat is at 3m.

    You must assume the position of the CoM as some distance x (from the wheel) in the first case, and x - 0.15 in the second case. Write both equations, with the two unknowns (x and M), and solve for them from the equations.
     
  6. Feb 22, 2005 #5
    and the answer is A=440kg right?
    thx
     
  7. Feb 22, 2005 #6
    H.C, how u get the question from the test#?$#?@$?#@
     
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