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Homework Help: Statics: Balancing beam of unknown length

  1. Nov 12, 2012 #1
    1. The problem statement, all variables and given/known data
    A horizontal meter stick has a mass of 217 g. Three weights ride on the meter stick: 265 g at 40.7 cm, 191 g at 75.9 cm, and 195 g at 99.3 cm. At what location on the meter stick would the system be in balance if it were suspended there?


    2. Relevant equations
    ƩF=0
    Ʃτ=0
    Center of mass (x-dimension) = (M1X1 +M2X2....)/(M1+M2...)


    3. The attempt at a solution
    I know that in order for the system to balance the torque on the system as well as the net force must both equal zero. I have just begun this section and I am not really sure how to approach this problem. Thank you for your time.
     
  2. jcsd
  3. Nov 12, 2012 #2

    SteamKing

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    Your post topic says "Statics: Balancing beam of unknown length".
    The problem statement says, "A horizontal meter stick ..."

    I don't know how long your meter stick is, but all of mine are 1 meter long.
     
  4. Nov 12, 2012 #3
    You were correct. That was a simple mistake, thank you for the help.
     
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