Minimizing the tension. A heavy horizontal girder of
Chapter 5, Problem 99CP(choose chapter or problem)
Minimizing the tension. A heavy horizontal girder of length ?L has several objects suspended from it. It is supported by a frictionless pivot at its left end and a cable of negligible weight that is attached to an I-beam at a point a distance ?h directly above the girder’s center. Where should the other end of the cable be attached to the girder so that the cable’s tension is a minimum? (?Hint?: In evaluating and presenting your answer, don’t forget that the maximum distance of the point of attachment from the pivot is the length ?L? of the beam.)
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