Forces and Vectors in Equilibrium

[geoinerworks]

Homework Statement

So I am at a loss at the moment my brain is not functioning...
Ok so we had to set up a pulley like system with straws, string and paper clips. The assignment was to do this and gather data, they didn't say what data to all gather.. I collected number of paper clips in all three locations Left, Middle, Right and the Angles...

Example... Paper clips... Left 3 Middle 4 Right 4 Each weighing 1g
Angles... from the middle point measured from the horizon line..
Left of center 68deg. Right of center 44deg.


This is where I am stuck... I am lost where to go from here... I know to be in equilibrium I have to come up with 0 but between here and there... I am lost.. I do know I have to use sin and cos but I am lost as to my placement of numbers.. Thank you in advance..

 

[geoinerworks]

http://www.flickr.com/photos/51438603@N00/sets/72157628674589987/with/6617610035/

Here is the set up...

my example is
Left 3 clips totaling 3g
Middle 4 clips totaling 4g
Right 4 clips totaling 4g

left angle 112deg and the right angle 44deg..

hope this makes more sense...

 

[geoinerworks]

Here is my work please take a look and let me know...
http://www.flickr.com/photos/51438603@N00/6623285907/