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!

Homework Help: Statics (

  1. Jan 10, 2010 #1
    1. If the resultant force acting on the hook is FR = <-180, 810, 180> what is the magnitude of F?

    2. So basically i got F1 which is <240,416,-360> and subtracted this from FR and got vector F2 then i took the square of the components and square rooted getting 789lb. Why is this wrong? what am i doing wrong?

    3. Please tell me why i got the wrong answer it should be right

    Attached Files:

  2. jcsd
  3. Jan 10, 2010 #2


    User Avatar
    Science Advisor
    Homework Helper

    Hi Luongo! :smile:

    I get 789 also. :redface:

    (Are you sure it's 810 for FRy? It doesn't look like that in the diagram)
  4. Jan 10, 2010 #3

    Tell us how'd you get F1_x and F1_y!? :rolleyes:
  5. Jan 10, 2010 #4

    to get those two i got F' which is the angle perp to the F1_z component then used that as a coefficient
  6. Jan 10, 2010 #5

    Yes it's right, i got the units wrong...? DAMN MASTERING PHYSICS!!! crap... lol
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook