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Homework Help: Finding support reactions

  1. Jul 30, 2016 #1
    1. The problem statement, all variables and given/known data
    I'm having problem of finding the support reactions of Va , Vb and Vc

    2. Relevant equations

    3. The attempt at a solution
    My working is VA +VB +VC = 10+5(3)

    VA +VB +VC = 25
    But , when i sub in the value of VA , VB and VC , it doesnt satisfy the equation of VA +VB +VC = 10+5(3) , why i'm wrong ?

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  2. jcsd
  3. Jul 31, 2016 #2

    Simon Bridge

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    Science Advisor
    Homework Helper

    Please explain your reasoning.
  4. Jul 31, 2016 #3
    VA, vb and vc act upwards, while 10+5(3) act downward, upwards forces = downward forces
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