# Homework Help: Resolving forces of a particles in equi

1. Jan 23, 2008

### hasnain721

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

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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
Thanks

Last edited by a moderator: May 3, 2017
2. Jan 23, 2008

### Midy1420

Force is a vector therefore has magnitude and direction. Break the forces into its components.

3. Jan 23, 2008

### hasnain721

how?

4. Jan 23, 2008

### rock.freak667

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
5. Jan 23, 2008

### Midy1420

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