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: Resolving forces of a particles in equi

  1. Jan 23, 2008 #1
    1. The problem statement, all variables and given/known data

    Forces of magnitude 4N, 5N and 8 N act on a particle in directions whose bearings are 000° , 090° and 210 ° respectively. Find the magnitude of the resultant force and the bearing of the direction in which it acts

    http://img251.imageshack.us/img251/6527/87818117yf6.jpg [Broken]

    2. Relevant equations


    3. The attempt at a solution

    I think that the resultant force is in between the 4N and the 5N forces. However I am not sure as i guessed that. I am not sure what to do next.

    Plz help
    Last edited by a moderator: May 3, 2017
  2. jcsd
  3. Jan 23, 2008 #2
    Force is a vector therefore has magnitude and direction. Break the forces into its components.
  4. Jan 23, 2008 #3
  5. Jan 23, 2008 #4


    User Avatar
    Homework Helper

    http://www.glenbrook.k12.il.us/gbssci/phys/Class/vectors/u3l3b.html [Broken]. I would show how to resolve forces but I would need to draw a diagram....
    Last edited by a moderator: May 3, 2017
  6. Jan 23, 2008 #5
    right F = Fx + Fy where Fx = Fcos(theta) + FSin(theta) relative to the coordinate system. Once you find all the components you can add all the Fx's and Fy's
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook