Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Coplanar equilibrium help

  1. Nov 8, 2007 #1
    Neglecting friction, determine the tension in cable ABD and the reaction at support C.


    help.. i dont have any idea to solve for the tension so that i could solve for the component force c
  2. jcsd
  3. Nov 8, 2007 #2
    Try forgetting that there's a string and a pulley; think instead of a force T acting upward at the LHS of the horizontal part of the frame and a force T acting leftward at the top of the vertical part of the frame.

    [Forget also that the leftward force would make the frame slide on the fulcrum! Think of it as a hinge instead]

    Can you write the sum of moments?
  4. Nov 10, 2007 #3
    yeah.. thank you.. i got the right answer.. same as the book..
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook