Bartlett, W. H. C. (William Holms Chambers), 1804-1893 · New York : Barnes · leaf 117
tant to itstwo components; E2= P2 + Q2 + 2PQ cos 9, or R VP2 + Q2 + 2PQ COS (p . (31); value of resultant; and because the angle 0rn is equal to the angle r Om,and sin rnO = sin A 0B, we also have, from the sametriangle, R : Q : : sin 9 : sin r Om, whence, R : P : : sin 9 : sin r On;Q sin 9 sin r… … Quantity of work immediately opposed to the force destined to overcomeit. Let us now consider the case in which the resistanceis exerted in any line of direction other than that of theforce, and in which the point of application of the forcecan only move along the line of direction of the…
Mechanics · Acoustics · Optics
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