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Center of Gravity/ Seesaw problem?

  1. Jan 31, 2013 #1
    1. The problem statement, all variables and given/known data
    A large wooden beam weighs 820 N and is 3.2 m long. the beam's CG is 1.4 m from one end. two workers carry it away. If they lift the beam at its ends, what part of the weight does each worker lift?

    2. Relevant equations


    3. The attempt at a solution
    I tried drawing out the picture and doing

    1.4(x)= 1.8(y)
    I realize you can't have two variables so I'm very confused

    Any help is apreciated!
  2. jcsd
  3. Jan 31, 2013 #2


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    Hello laneybaney. Welcome to PF !

    From what you set up, I take it that one worked lifts with a force, x, and the other lifts with a force of y .

    There's one more equation you need so that you can solve two equations in two unknowns.

    What must the sum x+y be equal to ?
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