Please explain how the moment of FAB and FAD were calculated in this picture. For example, I dont know where (0.24i and 720j) came from in calculating for FAB. I also dont know how -172.8 and 74.051 were obtained. Please explain it because I want to understand how to calculate for these two moments. The original item and diagram are shown on the right.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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Please explain how the moment of FAB and FAD were calculated in this picture. For example, I dont know where (0.24i and 720j) came from in calculating for FAB. I also dont know how -172.8 and 74.051 were obtained. Please explain it because I want to understand how to calculate for these two moments. The original item and diagram are shown on the right.

●
•Moment
OF FAB @ line AD
(MFAB) = (0.24 ₁² x=720 j). UAD
AD
172.8 k
=
=
74.0571
Nmm
=) AD = (TAC XTCE). UAD
= [(0.48+² +0.16j) X TCE]
M TCE) AD
=
=
0.48 ₁²ª + 0·16 j— 0-24k²
0.56
.
UAD
-0.16 TCE
-0.0609 TCE1 +0.1829 TCEj
+0.3+33 TCE K
[0.481"
0.481 +0.160.24 k
0.56
... (1)
... (2)
.
AD
The pipe ABCDE is supported by ball-and-socket joints
at A and D and by cable ECF that passes through a
ring C with negligible friction and is attached to hooks
at E and F. Knowing that the frame supports a
uniformly distributed load of 1500 N/m along segment
AB, answer the following questions.
490 mm
480 mm
1500 N/m
E
B
180 mm
D
160 mm
240 mm
Ring C
Transcribed Image Text:● •Moment OF FAB @ line AD (MFAB) = (0.24 ₁² x=720 j). UAD AD 172.8 k = = 74.0571 Nmm =) AD = (TAC XTCE). UAD = [(0.48+² +0.16j) X TCE] M TCE) AD = = 0.48 ₁²ª + 0·16 j— 0-24k² 0.56 . UAD -0.16 TCE -0.0609 TCE1 +0.1829 TCEj +0.3+33 TCE K [0.481" 0.481 +0.160.24 k 0.56 ... (1) ... (2) . AD The pipe ABCDE is supported by ball-and-socket joints at A and D and by cable ECF that passes through a ring C with negligible friction and is attached to hooks at E and F. Knowing that the frame supports a uniformly distributed load of 1500 N/m along segment AB, answer the following questions. 490 mm 480 mm 1500 N/m E B 180 mm D 160 mm 240 mm Ring C
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