Three forces A, B, C corresponding to three steel cables are acting on a joint, as shown. Force A=200N is described by (1) 0=45° which is a CCW rotation on the x-z plane from +x, and (2) an angle of depression p=55°. Force B=150N is on y-z plane; h = 2m and v = 5m. Force C = -100i-100j+100k N y B 2. Which of the following is closest to the z-component of force A? 81.1N k -114.7N k -81.1N k 163.8N k

Structural Analysis
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Chapter2: Loads On Structures
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Three forces A, B, C corresponding to three steel cables are acting on a joint, as shown.
Force A=200N is described by (1) 0=45° which is a CcW rotation on the x-z plane from +x, and (2) an angle of
depression p=55°.
Force B=150N is on y-z plane; h = 2m and v = 5m.
Force C = -100i-100j+100k N
y
A
B / h
2. Which of the following is closest to the z-component of force A?
81.1N k
-114.7N k
-81.1N k
163.8N k
Transcribed Image Text:Three forces A, B, C corresponding to three steel cables are acting on a joint, as shown. Force A=200N is described by (1) 0=45° which is a CcW rotation on the x-z plane from +x, and (2) an angle of depression p=55°. Force B=150N is on y-z plane; h = 2m and v = 5m. Force C = -100i-100j+100k N y A B / h 2. Which of the following is closest to the z-component of force A? 81.1N k -114.7N k -81.1N k 163.8N k
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