(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

http://s284.photobucket.com/albums/ll12/toluun/?action=view¤t=IMAG0004.jpg

Here is a picture of the problem at hand. I know how to solve the problem however the only thing I don't understand is the relationship between A and B. This means that if A moves to the right 1ft how far will B move downward?

2. Relevant equations

I know how to solve the problem however the only thing I don't understand is the relationship between A and B. This means that if A moves to the right 1ft how far will B move downward?

3. The attempt at a solution

I first tried thinking that if A moved 1 ft to the right the change in B would be the length of the rope covered. So Xb(change in mass b)= Xa/cos(30).

However this is incorrect I have the solution and the relationship is Xb = Xa * cos(30)

can anyone explain this?

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# Homework Help: Pulley with rope at angle

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