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!

Rotational dynamics

  1. Mar 11, 2005 #1
    A wrecking ball (weight = 5400 N) is supported by a boom, which may be assumed to be uniform and has a weight of 3800 N. As the drawing shows, a support cable runs from the top of the boom to the tractor. The angle between the support cable and the horizontal is 32°, and the angle between the boom and the horizontal is 48°.

    i'm drawing a blank really, i don't know what to use as my pivot point.
    i had L(5400) - Lsin(32)FT + 1/2Lsin(48)3800=0
    then i solved for FT but it was wrong, can you help me, or show me where to go
     
  2. jcsd
  3. Mar 11, 2005 #2
    the question wants to know what the force of the cables question is, and the lenght isn't defined but you can cancel it out right?
     
  4. Mar 11, 2005 #3

    cepheid

    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    You posted in college help already. Don't double post.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Rotational dynamics
  1. Rotational Dynamics (Replies: 26)

  2. Rotational dynamics (Replies: 4)

  3. Rotational Dynamics (Replies: 10)

  4. Rotational dynamics (Replies: 2)

  5. Rotational Dynamics (Replies: 3)

Loading...