A text book of physics, for the use of students of science and engineering (1918)
Duncan, John, d. 1941, Starling, Sydney George, 1873- · London Macmillan · leaf 173
46 — 1960 56 900 — Having determined the reactions of the supports, the polygon offorces for the external forces may be completed, and is ABCDEFGA 148 DYNAMICS CHAP. in Fig. 168 (b). The joints are then solved separately in the order1, 2, 3, 4, 5. The closing line AN in Fig. 168 (6) should be… … Im;. 168:—Forces in a common type of roof truss. Tiie bars which are under push have thick lines in Fig. 168 (a) ;the Hi in lines indicate bars under pull. Expt. 24.—Link polygon. Fig. 169 (a) shows a polygon ABCDEA madeof light cord and having forces P, Q, S, T and V applied as shown. Letthe…
Physics
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