Bartlett, W. H. C. (William Holms Chambers), 1804-1893 · New York : Barnes · leaf 373
s exceptthe friction, makes with the normal to the surface of thetrunnion at the point of contact. This gives an easy methodof finding the point of con-tact. For this purpose, wehave but to draw throughthe centre A, a line A Z, par-allel to the direction of JSF,and through A the line A n,making… … N* = iV^cos2? + iV8sina9; MECHANICS OF SOLIDS. 369 and, substituting for N2 sin2 9 its equal f2 N2 cos2 <p, we to and the value of the total nave friction; N2 = N2 cos2 9 + f2 JSf2 cos2 9 = iV2 cos2 <p (1 + f2);whence iVcos 9 = N X v^T+Z2 and multiplying both members by/, f f. N. COS ffl — N•…
Mechanics · Acoustics · Optics
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