Three identical weights are to be suspended from the ends of a rigid
light1 "Y"-shaped frame. Each arm of the frame is to be of a different length.
How is this to be accomplished (ie, how do you shape the "Y") so that the 'system' is in equilibrium within a horizontal plane?
1 "light" is meant as being weightless, having no concern for mass.
Note too, the colours are the radial ring extremeties of the "Y" arms within the horizontal plane.
(In reply to
Insufficient info to answer? by Kenny M)
There is unfortunately just one consideration that wasn't teased out at review (I did offer the solution for review but this appeared before that could happen).
The length of the arms are arbitrary as not all lengths will work, but that consideration needs to be taken into account if the system is to balance as in the diagram.
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Posted by brianjn
on 2009-12-22 22:12:03 |