1. Limited time only! Sign up for a free 30min personal 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!

Reaction forces on a structure

  1. Sep 22, 2013 #1
    1. The problem statement, all variables and given/known data

    Problem 4.36
    http://xps2pdf.co.uk/4c82ad8dcb91d5507169e0a18804ea30bf81d592/4.36.pdf [Broken]
    2. Relevant equations



    3. The attempt at a solution
    I am not sure if I am doing this correctly..there is a lot of information that I am not using to solve the problem (i.e. all the different distances, as well as the 30°. When determining the direction of a reaction force (Say A for example) do I just pick an arbitrary direction and if it comes out negative I know it's direction is opposite of what I put it as? I chose the moment at point A because I knew the moments of force A would be zero, leaving me with only the applied force and force E, which has a roller on it so it can only have a reaction force in one direction.
     

    Attached Files:

    Last edited by a moderator: May 6, 2017
  2. jcsd
  3. Sep 22, 2013 #2

    PhanthomJay

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    Can't open the first file, but based on your work:
    looks good
    you don't need them if you are just looking for reactions
    yes
    good!
     
    Last edited by a moderator: May 6, 2017
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted



Similar Discussions: Reaction forces on a structure
  1. Joint Reaction Force (Replies: 0)

Loading...