What is the linear acceleration of the bucket?

In summary: Iα instead of F =...Now you do the same thing for the reel, using τ = Iα instead of F =... τ = Iα instead of F =...you need to find the linear speed v and the angular speed ω of the reel, using the equation v = rTr/T. Then you can do the Newton's Second Law on the reel to find the tension T.
  • #36
Dark Visitor said:
Um I did, and I put what I found, both in my book and online.

Um so did I

and it's "Definition of torque is position "cross" force ("moment of force": r x F)."

See http://en.wikipedia.org/wiki/Torque" and the PF Library. :smile:
 
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  • #37
Well, obviously I was wrong. No need to rub it in...

Anyways, I am still confused. I don't see what torque has to do with tension. Plus, we don't even have tension. It seems like we still have too many unknowns.
 

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