Mechanics of engineering. Comprising statics and dynamics of solids: and the mechanics of the materials of constructions, or strength and elasticity of beams, columns, arches, shafts, etc (1888)
Church, Irving P[orter], 1851- [from old catalog] · New York, J. Wiley & sons · leaf 183
owns P1 and Pu at all, isto use the principle that if three forces balance, their linesof action must intersect in a point. That is, P^ must inter-sect the vertical containing 6r, the weight, in the same pointas Pl5 viz., A. Now EA, and also PC, = a cos a, .. ED = a cos a cot cp and AB == a cos a… … tan a = i \-r f and finally, tan a = cot 2cp, after some trigonometrical reduction. That is, a is the com-plement of double the angle of friction. FRICTION. 171 Problem 3.—Fig. 173. Given the resistance Q, acting-parallel to the fixed guide C, the angle a, and the (equal) co-efficients of friction…
Mechanics, Applied · Engineering · Strength of materials
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