A text book of elementary mechanics, for the use of colleges and schools (1881)
Dana, Edward Salisbury, 1849-1935 · New York, J. Wiley & sons · leaf 165
rough and friction hasto be considered, the perpendicular component DAor AD (= P sin /?) in the one case increases andin the other diminishes the pressure on the surface,and so alters the resistance of friction (89). Again (Fig. 70), let a be a body resting on a smoothinclined plane; the weight (W)… … Fig. 70. angles to it; thus, the components of the weight are ad and ab, of which ad is theeffective component to producemotion, and (the plane beingperfectly smooth) ab has noinfluence on the motion. Now,if HLK — bac = a, then ad =W sin a, and ab = W cos a.Again, let a (Fig. 71) be a body ofweight…
Mechanics
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
