Answered: Need help with these Q2. Identify any…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Need help with these

Q2. Identify any zero force members. ( there can be more than one )

Member AB

Member AJ

Member BCBC

Member BH

Member BJ

Member CD

Member CG

Member CH

Member DE

Member DF

Member DG

Member EF

Member FG

Member GH

Member GJ

q3.

You are asked to find the forces in members GHGH and CGCG using the Method of Sections. Which members should you make a cut through?

Member AB

Member AJ

Member BC

Member BH

Member BJ

Member CD

Member CG

Member CH

Member DE

Member DF

Member DG

Member EF

Member FG

Member GH

Member GJ

Q4. Having made a cut through the members in the previous part, you next want to solve for Member GH. Which of the following equilibrium equations is the most efficient? (i.e. which one will allow you to solve for the required member in one equation?)

a. ΣFx=0.

b. ΣMC=0.

c. ΣMH=0.

d. ΣFy=0

e ΣMD=0

The truss structure shown below is pinned to the wall at E and F.
h
h
h
h
H
G
F
h
A
C
D
E
W
Allow:
W = 43.3 kN
h = 3.5 m
e = 64.2 degrees

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