Hawkins electrical guide. Questions, answers & illustrations; a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833- · New York, T. Audel · leaf 85
ed the resultant of thegiven forces. ALTERNATING CURRENT DIAGRAMS 1,073 The composition of forces may be illustrated by the effect ofthe wind and tide on a sailboat as in fig. 1,311. Supposing theboat be acted upon by the wind so that in a given time, say halfan hour, it would be moved in the… … c Fig. 1,311.—Parallelogram of forces for boat acted upon by both wind and tide. of the tide, and draw BD equal and parallel to AC, and CDequal and parallel to AB, then the diagonal AD will representthe direction and distance the boat will move under the com-bined effect of wind and tide. Ques. In…
Electrical engineering
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