Anyone want to help me with this newton's law problem?

  • #1
david456103
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Homework Statement


A piece of string of length l and mass M is fastened into a circular loop and set spinning about the center of a circle with uniform angular velocity omega. Find the tension in the string. Suggestion: Draw a force diagram for a small piece of the loop subtending a small angle delta theta.

Homework Equations





The Attempt at a Solution


I know I'm supposed to use differentials and then integrate, but isn't the tension in the rope the same everywhere?
 

Answers and Replies

  • #2
HallsofIvy
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If you mean the string, then, yes, it is.
 
  • #3
david456103
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but how do you find that tension?
 
  • #4
Redbelly98
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Did you try drawing the force diagram, as suggested? What are the forces acting on the small piece of loop?
 

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