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Archimedes Principle and Buoyancy

  1. Jun 29, 2014 #1
    1. The problem statement, all variables and given/known data
    A 100g object having a density less than that of water is placed into a beaker half full of water. The beaker is then placed on a triple beam balance. Would be measured weight be equal to, greater than, or less than the weights of the water, the beaker, and the object added together? Explain.


    2. Relevant equations
    Fb = ρVg = mf g
    Wapt = mg - Fb


    3. The attempt at a solution
    Would it be equal to as the balance isn't affected by the buoyant force within the beaker? I'm confused.
     
  2. jcsd
  3. Jun 30, 2014 #2

    td21

    User Avatar
    Gold Member

    your attempt is reasonable enough, but Newton's third law would be helpful.
     
    Last edited: Jun 30, 2014
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