Structural Analysis
Structural Analysis
6th Edition
ISBN: 9781337630931
Author: KASSIMALI, Aslam.
Publisher: Cengage,
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Question
Determine the angle 0 between the two cables attached to
the pipe.
F = 25 lb
SOLUTION
Unit Vectors:
60°
uF, = cos 30° sin 30°i + cos 30° cos 30°j - sin 30°k
= 0.4330i + 0.75j - 0.5k
30°
30°.
y
UF, = cos 135°i + cos 60°j + cos 60°k
= -0.7071i + 0.5j + 0.5k
F = 30 lb
The Angles Between Two Vectors 0:
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Transcribed Image Text:Determine the angle 0 between the two cables attached to the pipe. F = 25 lb SOLUTION Unit Vectors: 60° uF, = cos 30° sin 30°i + cos 30° cos 30°j - sin 30°k = 0.4330i + 0.75j - 0.5k 30° 30°. y UF, = cos 135°i + cos 60°j + cos 60°k = -0.7071i + 0.5j + 0.5k F = 30 lb The Angles Between Two Vectors 0:
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