How did they get 1 and 1 when the given value for height and width is 2 and 2 respectively?

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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How did they get 1 and 1 when the given value for height and width is 2 and 2 respectively?

TATICS OF RIGID BODIES - CHAPTER 4
TRUSS ANALYSIS
PROBLEM 1 (Method of Section)
Determine the force in member HG, BG, and BC.
State whether it is in tension or compression.
2000 N
-2 m
7000 N
H
B
-2 m
600 N
800 N
2 m
F
D
600 N
2 m
2 m
E
70000 N
2m
sec. a-a:
T
zm
B
MOON GION
NON.CONCURRENT F.S.
E
↑ zm
HG
BG
BC
=F=O
=FH=O
ZM=0
3 members or
3 unknown forces
Transcribed Image Text:TATICS OF RIGID BODIES - CHAPTER 4 TRUSS ANALYSIS PROBLEM 1 (Method of Section) Determine the force in member HG, BG, and BC. State whether it is in tension or compression. 2000 N -2 m 7000 N H B -2 m 600 N 800 N 2 m F D 600 N 2 m 2 m E 70000 N 2m sec. a-a: T zm B MOON GION NON.CONCURRENT F.S. E ↑ zm HG BG BC =F=O =FH=O ZM=0 3 members or 3 unknown forces
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