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!

Moments, cross-products and summing moments

  1. Oct 9, 2007 #1
    1. [​IMG]

    2.Cross product of two vectors or finding y and x components and multiplying each by appropriate distance (then adding them up to find moment)

    3. Ok im confused about how to even approach the problem. If someone tells me where the axis are and how i have to look at teh problem im sure I can do it. But i have no clue where and how to look at the problem

    for the first one (a) I made this diagram


    so according to taht the x component of that A weight will be not effecting anything since distance will be 0 but y component which is


    My = 4.8 x 14 = 67.6 lb in
    Mx = 0

    Mb = 67.6 lb

    IS THIS RIGHT? im guesing no ... can someone help me !!
  2. jcsd
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Can you help with the solution or looking for help too?

Similar Discussions: Moments, cross-products and summing moments