Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 176
und or findthe resultant of the 100- and 80-pound forces. First we make a drawino-of o the board and mark upon it thelines of action of the two forceswhose resultant is to be found, asin Fig. 6. Then by some conven-ient scale, as 100 pounds to theinch, lay off from any convenientpoint A, a line AB… … loolbs. leoibs. ySolba
Architecture · Building · Carpentry
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