The h = 110 ft tall communication tower is supported by three cables at A and a ball-and-socket support at O. Cable AB is pre-tensioned with a magnitude TAB = 4 kips. The coordinates of points B, C, and D in the ground (x, y) plane are: . B = (25,45) ft • C=(-15, 20) ft D=(-5, -15) ft . Determine the magnitude of the tension in cables AC and AD and the normal force in tower AO. 14 TAC = TAD = PAO- 1.704 13.74 18.91 DO A kips kips kips B ✓100% X0% ?*0%

International Edition---engineering Mechanics: Statics, 4th Edition
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Chapter6: Beams And Cables
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Problem 6.4P: Find the internal force systems acting on sections 1 and 2.
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The h110 ft tall communication tower is supported by three cables at A and a ball-and-socket support at
O. Cable AB is pre-tensioned with a magnitude TAB = 4 kips. The coordinates of points B, C, and D in the
ground (z,y) plane are:
B = (25,45) ft
C = (-15,20) ft
D = (-5, -15) ft
Determine the magnitude of the tension in cables AC and AD and the normal force in tower AO.
TAC
TAD
PAO
1.704
13.74
DO
Y
4
B
kips → (~100%4.
kips
● XOX
kips
? ***
Transcribed Image Text:The h110 ft tall communication tower is supported by three cables at A and a ball-and-socket support at O. Cable AB is pre-tensioned with a magnitude TAB = 4 kips. The coordinates of points B, C, and D in the ground (z,y) plane are: B = (25,45) ft C = (-15,20) ft D = (-5, -15) ft Determine the magnitude of the tension in cables AC and AD and the normal force in tower AO. TAC TAD PAO 1.704 13.74 DO Y 4 B kips → (~100%4. kips ● XOX kips ? ***
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