Elements of mechanics: for the use of colleges, academies, and high schools (1859)
Peck, William G. (William Guy), 1820-1892 · New York, A. S. Barnes & Burr · leaf 161
due to gravity upon the inclined plane. Let AP represent a section of the inclined plane made bya vertical plane taken perpendicularto the given plane, and let P be thecentre of gravity of a body restingon the given plane. Let PQ repre-sent the acceleration due to gravity,denoted by g, and let PP… … RECTILINEAR MOTION. 159 AJB, the angle RQP is equal to AJBO, or to a. Hence wehave, from the right-angled triangle PQJR, g = <7sina. But the triangle AB G is right-angled, and, if we denoteits height A C by h, and its length AB by /, we shall have sina r= —■, which, being substituted above,…
Mechanics
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