am_knightmare
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Homework Statement
https://dl.dropbox.com/u/66988308/Capture.JPG
Homework Equations
V=rW
The Attempt at a Solution
I tried to plug in the forumla , and algebras but I keep getting rc/rf as answer instead of rf/rc as the book says.
Work:
Vf=(rf)W
W=Vf/rf
W=Vc/rc
Vc/rc = Vf/rf
(Vc)(rf) = (Vf) (rc)
(Vc)(rf) / (Vf) (rc)= 1
Im not sure if this is the right track.
Thanks for any advice.
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