On Wed, 13 June 2001, "Ed Wolf" wrote:
> If I use a block and tackle with a 5:1 mechanical
> advantage attached to a beam in my garage to lift a
> 500 pound load, the 500 pound load will only weigh
> 100 pounds at the point of attachment on the beam?
Nope. It "weighs" only 100# at your end (the end you pull on). The beam still
has to support the entire weight of the load, plus the pull force.
73 Mike N2MG
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