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Homework Help: Normal Force Equilibrium

  1. Jan 3, 2017 #1

    1. The problem statement, all variables and given/known data

    This isn't really a problem but an example in an online lecture. I'm trying to understand everything for when I get to harder questions but am having trouble understanding the "d/b" part of the equation.

    2. Relevant equations
    How does dividing d by b help solve for the normal forces acting at A and B? I apologize if my question is not phrased well enough.

    3. The attempt at a solution
  2. jcsd
  3. Jan 3, 2017 #2


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    Science Advisor
    Homework Helper
    2017 Award

    Hi Wes,

    It's all about balance equations: The thing doesn't move (or keel over, which is also a form of motion), so
    1. the forces balance
    2. the moments balance
    If you write down these two balance equations you have two equations for two unknowns (normal force at A and at B).

    Do us a favor and write down these two equations and we'll take it from there (if still necessary :smile:)
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