Join Date: Dec 2002
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Re: Mechanical advantage?
Yes, you have effectively doubled your pulling ability. No your winch mount does not have 15000 poulds of stress on it. Here's why...
In your diagram, your winch is pulling on the cable with a force, say 7500 pounds. Effectively, the stationary object is also applying that force on the piece of farm equipent, resulting in a total force of 15000. How? well, your winch line has 7500 pounds of tension in it. Therefore, it has that much tension from one end of the line to the other, regardless that it crosses a pulley in the middle. So! There is effectively 7500 pounds on either side of the snatch block, resulting in a total pull of 15000. It that makes no sense, blame it on being 215am! Hope that helps! [img]/ubbthreads/images/graemlins/smile.gif[/img]