Analytical mechanics for students of physics and engineering (1913)
Dadourian, Haroutune Mugurditch, 1878- · New York, D. Van Nostrand Company · leaf 27
Ik;. 10. ar+ay-fa COS ai,|a COS a2,f a cos «3.| I\ V a = Vaz2+ay2+a VI where ai, a2, and a:! are the angles a makes with the coordi-nate axes. 14. Resultant of Any Number of Vectors. Graphical Methods.— The resultant of a number of vectors a. b. c. etc., may beobtained by either of the following… … It.,. 11. move c until its origin fulls on the terminus of b, and so onuntil all the vectors are joined. This gives, in general, anopen polygon. Then the resultantis obtained by drawing a vectorwhich closes the polygon and whichhas its origin a1 the origin of a.The validity of this method will…
Mechanics, Analytic
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