Martin, Louis Adolphe, 1880- · New York, J.Wiley & Sons, Inc.: [etc. etc.] · leaf 86
^-jw ^^^ ^=Tir- Example.—Find the centre of gravity of three parti-cles each weighing W pounds placed upon the circum- FORCES ACTING ON A RIGID BODY 67 ference of a circle, radius r, so that the first and thirdare 90° from the second. Solution.—Draw diagram illustrating problem (Fig. 66).Assume two… … KiG. 66 Fig. 67 Example.—Find the centroid of a circular plate or lamina, radius r inches, in which a circular hole tangent to rthe circumference and of radius — has been drilled (Fig. 67). 68 ANALYTICAL STATICS Solution.—In this case consider by reason of symmetrythat the C. of G. of the whole…
Mechanics
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