Results 1 to 5 of 5

Math Help - math by moments

  1. #1
    Newbie
    Joined
    Aug 2009
    Posts
    18

    math by moments

    Hi , i do not know what i am doing, as the teacher puts us to sleep, could some-one please help. thanks IVA.
    Hi , i have tried attaching a word doc if that helps. cheers IVA.
    Attached Files Attached Files
    Last edited by IVABIGGEN; August 3rd 2009 at 12:27 AM. Reason: attachments
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Grand Panjandrum
    Joined
    Nov 2005
    From
    someplace
    Posts
    14,972
    Thanks
    4
    Quote Originally Posted by IVABIGGEN View Post
    Hi , i do not know what i am doing, as the teacher puts us to sleep, could some-one please help. thanks IVA.
    We cant read the attachments they are too small.

    CB
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie
    Joined
    Aug 2009
    Posts
    18

    Thanks

    Thanks for the advice, cheers IVA
    Follow Math Help Forum on Facebook and Google+

  4. #4
    Grand Panjandrum
    Joined
    Nov 2005
    From
    someplace
    Posts
    14,972
    Thanks
    4
    Quote Originally Posted by IVABIGGEN View Post
    Thanks for the advice, cheers IVA
    Assume the truss has negligable mass.

    Take moments about A, and for a stable system these sum to zero.

    The distances that the wind load forces act along the roof are 0, 8/\sqrt{3} , 2 \times 8/\sqrt{3}, 3 \times 8/\sqrt{3} (all the geometry is based on 30,60,90 right triangles).

    After you find the reaction at B this way you use the fact that all the forces sum to zero to find the force at A.

    CB
    Follow Math Help Forum on Facebook and Google+

  5. #5
    Newbie
    Joined
    Aug 2009
    Posts
    18
    Hi, i will give your method a go, and try and work it out .
    thanks IVA
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Moments
    Posted in the Math Topics Forum
    Replies: 3
    Last Post: September 18th 2010, 03:40 AM
  2. Moments
    Posted in the Advanced Statistics Forum
    Replies: 5
    Last Post: March 19th 2010, 07:37 PM
  3. Maths by Moments
    Posted in the Math Topics Forum
    Replies: 0
    Last Post: August 9th 2009, 10:36 PM
  4. Moments
    Posted in the Math Topics Forum
    Replies: 2
    Last Post: May 16th 2009, 02:14 PM
  5. moments
    Posted in the Advanced Applied Math Forum
    Replies: 3
    Last Post: May 5th 2009, 08:47 PM

Search Tags


/mathhelpforum @mathhelpforum