How to find the 'r' for Torque

  • Thread starter PhizKid
  • Start date
  • #1
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1

Homework Statement


8GcR8.png



Homework Equations


Torque = r * F * sin(x)


The Attempt at a Solution


The solution says that the 'R' I marked was L*cos(phi). I fail to see the geometry of how they got this...you have only one side and one right angle for that triangle...how can you solve for 'R'?
 

Answers and Replies

  • #2
Doc Al
Mentor
44,988
1,259
you have only one side and one right angle for that triangle...
You should be able to find the other angles, for example between the right hand rope and the bar.
 

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