An elementary treatise on theoretical mechanics (1893)
Ziwet, Alexander, 1853-1928 · New York, London, Macmillan and Co. · leaf 134
ight angles to Hy itis always possible to find a line /q par-allel to / at a distance r^ from /, suchas to make Rr^= ~^i- The line /g so determined is the cen-tral axis. For, if this line be taken asthe line of the resultant R, the addi-tional couple Rr^ destroys the compo-nent //j, so that the… … 124 STATICS. [207. It appears from the construction of the central axis given inArt. 205, that the vector of the resulting couple for this axis /gis IIf^ = H cos <f); it is, therefore, less than for any other line. It is instructive to observe how the vector H increases andchanges its direction…
Mechanics, Analytic
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