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Homework Help: Weight of fluid block

  1. Feb 25, 2016 #1
    1. The problem statement, all variables and given/known data
    why the formula of weight of fluid block is given by the formula of ρg[ (R^2) - pi(R^2) ] 1?

    what does the 1m mean here ?
    shouldn't it = ρg (pi) (R^2) h ?
    2. Relevant equations

    3. The attempt at a solution

    Attached Files:

  2. jcsd
  3. Feb 25, 2016 #2


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    It's a square minus a quarter circle. ##W## is the weight of 1 m length (i.e. into the paper) of the area shaded grey in the right picture in Fig 3-36.
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