Forces and Vectors in Equilibrium

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SUMMARY

The discussion focuses on a physics homework assignment involving a pulley system constructed with straws, string, and paper clips to analyze forces and vectors in equilibrium. The participant collected data on the number of paper clips and their respective angles, noting a total of 3g on the left, 4g in the middle, and 4g on the right. To achieve equilibrium, the participant must calculate the net forces using trigonometric functions, specifically sine and cosine, to resolve the forces acting at the given angles of 112 degrees and 44 degrees. The goal is to ensure that the sum of the forces equals zero.

PREREQUISITES
  • Understanding of basic physics concepts related to forces and equilibrium
  • Knowledge of trigonometric functions, specifically sine and cosine
  • Familiarity with vector resolution techniques
  • Ability to interpret and analyze experimental data
NEXT STEPS
  • Study the principles of static equilibrium in physics
  • Learn how to apply sine and cosine laws in vector resolution
  • Research methods for calculating net forces in a pulley system
  • Explore practical applications of trigonometry in real-world physics problems
USEFUL FOR

Students studying physics, particularly those working on mechanics and equilibrium problems, as well as educators looking for practical examples of force analysis in classroom settings.

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

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