Martin, Louis Adolphe, 1880- · New York, J.Wiley & Sons, Inc.: [etc. etc.] · leaf 138
Fig. 147It is, however, possible that the magnitude polygon beclosed, and that the first and last sides of the funicular FORCES ACTING ON A RIGID BODY 119 polygon do not coincide but are parallel. Under theseconditions the funicular polygon is open and a couple,whose forces are ao and oe, results.… … Fig. 148 necessary. These, then, are the graphical conditions ofequilibrium. The following examples illustrate the method of pro-cedure in the application of the above principles. Example.—Upon a uniform beam, AB, 10 feet long,weighing 150 pounds, a force of 100 pounds acts at anangle of 315° at a…
Mechanics
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