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: Vector addition with 4 force vectors

  1. Aug 14, 2011 #1
    1. The problem statement, all variables and given/known data
    [PLAIN]http://img849.imageshack.us/img849/1466/vectorimage.png [Broken]

    2. Relevant equations

    3. The attempt at a solution

    I'm not sure at all how to do this to get the resultant vector, other than using the head-to-tail method by scaled vectors, which I really don't want to do and work out because it seems like it'd be too time consuming if I was to encounter a problem like this on a test..

    I'm not too sure about this at all, so if anyone can give me a hint or something on how to start, it'd be appreciated. Thanks
    Last edited by a moderator: May 5, 2017
  2. jcsd
  3. Aug 14, 2011 #2


    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    If you break up each vector into its x and y components, then add the x components, and then separately add the y components, you end up with 2 force vectors at right angles to each other, one in the x direction and the other in the y direction. Now find the resultant of those 2 vectors. Please watch plus and minus signs.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook