How Do I Find the Missing Values for Unknown Weights in a Pulley System?

  • Thread starter Thread starter fableblue
  • Start date Start date
  • Tags Tags
    Spring
Join the discussion
Ask a follow-up here, or get your own question answered by working scientists, mathematicians and engineers — people, not an autocomplete.
Real named experts · corrections over time · the nuance an AI answer skips
1 reply · 2K views
fableblue
Messages
17
Reaction score
0

Homework Statement


Am I heading in the right direction?
If so i am lost now in finding the missing values for the unknown weights, a little nudge would be great. The work that i have attached is CLEANED up so it can be readable.


Homework Equations





The Attempt at a Solution


 

Attachments

  • statics.jpg
    statics.jpg
    27.7 KB · Views: 451
  • sts003.pdf
    sts003.pdf
    30.8 KB · Views: 258
Physics news on Phys.org
I finally was able to complete this problem.
First i was going in the wrong direction using unit vectors. I found out that it was a simple force vector problem. Bottom line i was over thing and making it out to be more complicated then it really was, but it was comforting to find out that i was not the only one :-) But anyway I am going to attached my solution. The professor did not use angles in his solution as i did he just used the properties of find the angle sine=opp/hyp and cos=adj/hyp. I used tan to find the angles as you can see. The one that that confuses me is how precise is precise?
Thank youI am new on here and i see that this would be a good place for practice.
 

Attachments

  • Solution002.jpg
    Solution002.jpg
    26.7 KB · Views: 439
Last edited: