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!

Tension of Suspended Cable

  1. Mar 23, 2016 #1
    1. The problem statement, all variables and given/known data
    A 50.0 kg 6.00m awning is held up by a wire in the middle. A 15kg sign hangs at the end. Calculate the tension in the massless wire and the magnitude of the net force from the wall acting on the awning.
    The cable forms a 40 degree angle with the awning at the bottom right corner.
    2. Relevant equations
    Sum or Torque

    3. The attempt at a solution
    Sum of Torque=0=(mg)(L)+(Mg)(L/2)-(T)(L/2)Sin40)
    L's cancel
    I'm not sure what the question means by net force from the wall. Is it just the normal force of the wall or do I have to use the tension to find it?
  2. jcsd
  3. Mar 23, 2016 #2


    User Avatar
    Homework Helper
    Gold Member
    2017 Award

    Careful with treating the 2's.
    What can you say about the net force on the system?
  4. Mar 23, 2016 #3
    The net force would have to be zero. Does this mean that they are equal?
  5. Mar 24, 2016 #4


    User Avatar
    Homework Helper
    Gold Member
    2017 Award

    It means ∑Fx = 0 and ∑Fy = 0. The wall exerts a force on the awning that could have both and x and y components.
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: Tension of Suspended Cable
  1. Tension in a cable (Replies: 5)

  2. Tension In Cables (Replies: 4)

  3. Tension in cables (Replies: 4)

  4. Tensions in Cable (Replies: 2)