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Homework Help: Scaling law for static buoyancy

  1. Feb 3, 2008 #1
    1. The problem statement, all variables and given/known data

    Derive the scaling law for static buoyancy force of a solid sphere in a liquid with a density of γ.
    Assume the sphere is made of a material with a density of γs (γs< γ).

    2. Relevant equations

    3. The attempt at a solution

    I calculated the the buoyancy force of the sphere as

    F=(pi/6)*d^3*γ*g, where F=buoyancy force, d=sphere diameter. NOw can anybody tell me what is scaling law?how to derive it?
  2. jcsd
  3. Feb 7, 2011 #2
    Im doing this exact same problem in my MEMS class and i have the same issue
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