Modern carpentry and joinery : being a compilation of the very best things and most modern and practical methods known in the arts of carpentry and joinery (1910)
Hodgson, Frederick Thomas, 1836- · Chicago : F. J. Drake & Co. · leaf 314
he parallelogramACDB. Then the length of the diagonal AD rep-resents the magnitude of the resultant force, and thedirection in which it acts will be from the point A, asshown by the arrow. It must be understood clearly that a resultant is aforce which can take the place of, and will producethe same… … Fig. 5. Example 5. Figs. 6 and 7 show the magnitude anddirection of the resultant force when forces of 9 and 6lbs. respectively act at angles-of (a) 120°, (b) 45°. The simple apparatus shown in Fig. 8 clearly illus-trates the principle of the parallelogram of forces. Ona vertical board are fixed…
Carpentry
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