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Homework Help: Turning effects of forces 3

  1. Jul 4, 2009 #1
    1. The problem statement, all variables and given/known data
    A ruler of 0.75N and 52.0cm is supported 1.0cm from each of its two ends. A weight of 1.00N is placed 16.0cm from the left end of the ruler. Determine the forces acting upon the ruler at the two supports.

    2. Relevant equations
    I know that the two forces of the supports are pointing upward and 1.00N is pointing downward as well as 0.75N. So I know that the two forces of the supports together are 1.75N. But I don't know what to do now.
  2. jcsd
  3. Jul 4, 2009 #2


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    Staff Emeritus
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    HINT: Consider the moments (or torques) about one of the pivots.
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