Martin, Louis Adolphe, 1880- · New York, J.Wiley & Sons, Inc.: [etc. etc.] · leaf 120
inthe same straight line, and therefore their sum is notfound directly. A more con-venient construction is shown inFig. 124. Here at any point, O,in a vertical line OM, constructa triangle similar to the onewith base 2 in Fig. 123, butwith altitude 3, thus obtainingX. This is most convenientlydone… … 102 GRAPHICAL STATICS line OM and following one another head to tail. ThenOM = M is the required result. The diagram in Fig. 124 can appropriately be calleda Summation Polygon or Diagram. Exercise 149. Find graphically: (a) X 5-3+2-4+30. (6) x= 7-8+5-6+3-4+I-2 5 Exercise 150. Find x graphically:…
Mechanics
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