Could you explain how the vectors are fo

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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Could you explain how the vectors are found. 

4-54. The A-frame is being hoisted into an upright
position by the vertical force of F = 80 lb. Determine the
moment of this force about the y' axis passing through
points A and B when the frame is in the position shown.
4-55. The A-frame is being hoisted into an upright
position by the vertical force of F = 80 lb. Determine the
moment of this force about the x axis when the frame is in
the position shown.
X
Z
A
6 ft
30°
15°
B
Probs. 4-54/55
F
C
6 ft
Transcribed Image Text:4-54. The A-frame is being hoisted into an upright position by the vertical force of F = 80 lb. Determine the moment of this force about the y' axis passing through points A and B when the frame is in the position shown. 4-55. The A-frame is being hoisted into an upright position by the vertical force of F = 80 lb. Determine the moment of this force about the x axis when the frame is in the position shown. X Z A 6 ft 30° 15° B Probs. 4-54/55 F C 6 ft
4-54. The A-frame is being hoisted into an upright
position by the vertical force of F = 80 lb. Determine the
moment of this force about the y' axis passing through
points A and B when the frame is in the position shown.
4-55. The A-frame is being hoisted into an upright
position by the vertical force of F = 80 lb. Determine the
moment of this force about the x axis when the frame is in
the position shown.
30°
6 ft
15°
Probs. 4-54/55
6 ft
*4-60. The A-frame is being hoisted into an upright
position by the vertical force of F = 80 lb. Determine the
moment of this force about the y axis when the frame is in
the position shown.
WT
F
by
Wr
rec
of
the
4.5
Transcribed Image Text:4-54. The A-frame is being hoisted into an upright position by the vertical force of F = 80 lb. Determine the moment of this force about the y' axis passing through points A and B when the frame is in the position shown. 4-55. The A-frame is being hoisted into an upright position by the vertical force of F = 80 lb. Determine the moment of this force about the x axis when the frame is in the position shown. 30° 6 ft 15° Probs. 4-54/55 6 ft *4-60. The A-frame is being hoisted into an upright position by the vertical force of F = 80 lb. Determine the moment of this force about the y axis when the frame is in the position shown. WT F by Wr rec of the 4.5
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