Three bamboo poles anchored at points B, C, and D on the ground supports the TV antenna placed at their other end at Point A. The TV antenna with a negligible weight is subjected to a wind load equivalent to a force in the component form shown in the figure.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Three bamboo poles anchored at points B, C, and D on the ground supports the TV antenna placed at their other end at Point A. The TV antenna with a
negligible weight is subjected to a wind load equivalent to a force in the component form shown in the figure.
(-45î + 45k)N
(0,8,0)
A
(0,0,-12)
(-6,0,2.4)
(0,0,0)..
(8,0,4)
Transcribed Image Text:Three bamboo poles anchored at points B, C, and D on the ground supports the TV antenna placed at their other end at Point A. The TV antenna with a negligible weight is subjected to a wind load equivalent to a force in the component form shown in the figure. (-45î + 45k)N (0,8,0) A (0,0,-12) (-6,0,2.4) (0,0,0).. (8,0,4)
1. Which of the following shows the most ideally constructed force diagram of point A, the point where the three poles are attached to the antenna?
(-45î + 45k)N
(-45î + 45k)N
(0,8,0),
A
TAD
(0,8,0)
A TAD
D
TAB
(0,0,-12)
T0,0,-12)
(0,0,0)
(-6,0,2.4)
(0,0,0)
(-6,0,2.4)
(8,0,4)
(8,0,4)
В
A
(-45î + 45k)N
(0,8,0),
A TAD
(-45î + 45k)N
(0,8,0)
A TAD
D
TAB
T0,0,-12)
D
TAB
0,0,-12)
B
(0,0,0)
(-6,0,2.4)
(0,0,0)
(-6,0,2.4)
(8,0,4)
D
(8,0,4)
Transcribed Image Text:1. Which of the following shows the most ideally constructed force diagram of point A, the point where the three poles are attached to the antenna? (-45î + 45k)N (-45î + 45k)N (0,8,0), A TAD (0,8,0) A TAD D TAB (0,0,-12) T0,0,-12) (0,0,0) (-6,0,2.4) (0,0,0) (-6,0,2.4) (8,0,4) (8,0,4) В A (-45î + 45k)N (0,8,0), A TAD (-45î + 45k)N (0,8,0) A TAD D TAB T0,0,-12) D TAB 0,0,-12) B (0,0,0) (-6,0,2.4) (0,0,0) (-6,0,2.4) (8,0,4) D (8,0,4)
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