Guy on a swing, given angle

  • Thread starter 1MileCrash
  • Start date
  • #1
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A rope has a max tension of 800N.

A swinger is pulled back so that the rope is 27 degrees from vertical.

What's the max mass of the swinger?

Ok... I have tried a few approaches. I can't relate potential to kinetic because I am not given height. And even if i could get to kinetic, i don't know mass!

I figure that tension must be able to support weight and apply the centripetal force,

T=mg + mv^2/r

But I have no r.. no length, no v.. what's the key?
 

Answers and Replies

  • #2
tiny-tim
Science Advisor
Homework Helper
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Hi 1MileCrash! :smile:

Call the length "r" and the mass "m" …

they'll cancel out in the end! :wink:
 

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