1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

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 ?
     

    Attached Files:

    • 326.jpg
      326.jpg
      File size:
      26 KB
      Views:
      31
    • 327.jpg
      327.jpg
      File size:
      7.5 KB
      Views:
      26
  2. jcsd
  3. Jul 31, 2016 #2

    Simon Bridge

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member
    2016 Award

    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
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted