P= 120 lb 30° 70° 0 = 100 lb Using direction cosines, the vector P in the diagram can be expressed as * O OP = (120lb cos 30°) i + (120lb sin 60*) j O P = (120lb cos 60°) i + (120lb cos 30°) j OP = (120lb cos 30°) i + (120lb cos 60°) j

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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P= 120 lb
30°
70°
0 = 100 lb
Using direction cosines, the vector P in the diagram can be expressed as
O P = (120lb cos 30°) i + (120lb sin 60°) j
O P = (120lb cos 60°) i + (120lb cos 30°) j
O P = (120lb cos 30°) i + (120lb cos 60°) j
Transcribed Image Text:P= 120 lb 30° 70° 0 = 100 lb Using direction cosines, the vector P in the diagram can be expressed as O P = (120lb cos 30°) i + (120lb sin 60°) j O P = (120lb cos 60°) i + (120lb cos 30°) j O P = (120lb cos 30°) i + (120lb cos 60°) j
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