Determine the magnitude and sense of the forces in cables A and B of figure 2-34?

Physics for Scientists and Engineers: Foundations and Connections
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ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
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Determine the magnitude and sense of the forces in cables A and B of figure 2-34?

W
of action of B
Line of action of
e lines of action
Figure 2-23(b)
le triangles can b
ce the sense arrow
2-31, we see the
case, the sense at.
y, indicating te
ply measured with
isly, the accuracy
Is and the size
isfactory results
le 2-7.
ring the poly
Igebraic solu
as in Figure
Force
mple 2-7.
EXAMPLE 2-9
100 KN
PROBLEMS
(a)
60°
Use graphical techniques to check the results of Example 2-6M.
Solution
B = 52 KN
The answers in Figure 2-33M(a) were obtained by measuring the poly-
gon and are very close to those obtained algebraically. Placing the ar-
rows so they act on the original joint, as in Figure 2-33M(b), we see
that both arrows represent compression.
A = 97 KN
20 KN
Scale
1
100 KN
Statics
Figure 2-33M Force polygon for Example 2-6M.
(b)
45
2-11. Determine the magnitude and sense of the forces in cables A
and B of Figure 2-34.
2-11M. Determine the magnitude and sense of the forces in cables A
and B of Figure 2-34M.
2-12. Determine the magnitude and sense of the forces in bars A and
B of Figure 2-35. Use the algebraic method, and then check
your results graphically.
2-12M. Determine the magnitude and sense of the forces in bars A and
B of Figure 2-35M. Use the algebraic method, and then check
your results graphically.
3.
Proble
Transcribed Image Text:W of action of B Line of action of e lines of action Figure 2-23(b) le triangles can b ce the sense arrow 2-31, we see the case, the sense at. y, indicating te ply measured with isly, the accuracy Is and the size isfactory results le 2-7. ring the poly Igebraic solu as in Figure Force mple 2-7. EXAMPLE 2-9 100 KN PROBLEMS (a) 60° Use graphical techniques to check the results of Example 2-6M. Solution B = 52 KN The answers in Figure 2-33M(a) were obtained by measuring the poly- gon and are very close to those obtained algebraically. Placing the ar- rows so they act on the original joint, as in Figure 2-33M(b), we see that both arrows represent compression. A = 97 KN 20 KN Scale 1 100 KN Statics Figure 2-33M Force polygon for Example 2-6M. (b) 45 2-11. Determine the magnitude and sense of the forces in cables A and B of Figure 2-34. 2-11M. Determine the magnitude and sense of the forces in cables A and B of Figure 2-34M. 2-12. Determine the magnitude and sense of the forces in bars A and B of Figure 2-35. Use the algebraic method, and then check your results graphically. 2-12M. Determine the magnitude and sense of the forces in bars A and B of Figure 2-35M. Use the algebraic method, and then check your results graphically. 3. Proble
46
CHAPTER 2
A
www
A
30°
Ten Figure 2-34
3
A asldno nj 2010 ad insan bu abun
50 k
30 k
Figure 2-35
A aldio ni anul arb to sering ons stemm
B
30⁰
39 A
80 k
B
Figure 2-36
200
60°
TIIT
5
B
30° 19
Figure 2-37
2-13. Determine the magnitude and sense of the forces in bars A and
B in Figure 2-36.
2-13M. Determine the magnitude and sense of the forces in bars A and
B in Figure 2-36M.
50 kN
Ban
B
A
50 k
30⁰
3
A
A
225 kN
Figure 2-34M
A
es 38
Figure 2-35M
2-14. Algebraically determine the forces in members A and B of the
structure in Figure 2-37. (Note: The small triangle is another
way to represent a hinge or pin connection.)
2-14M. Algebraically determine the forces in members A and B of the
structure in Figure 2-37M. (Note: The small triangle is another
way to represent a hinge or pin connection.)
30°
777 360 kN
B
B
B
Figure 2-36M
12
30°
100 KN
30⁰
777777
m
Figure 2-37M 2-3
Transcribed Image Text:46 CHAPTER 2 A www A 30° Ten Figure 2-34 3 A asldno nj 2010 ad insan bu abun 50 k 30 k Figure 2-35 A aldio ni anul arb to sering ons stemm B 30⁰ 39 A 80 k B Figure 2-36 200 60° TIIT 5 B 30° 19 Figure 2-37 2-13. Determine the magnitude and sense of the forces in bars A and B in Figure 2-36. 2-13M. Determine the magnitude and sense of the forces in bars A and B in Figure 2-36M. 50 kN Ban B A 50 k 30⁰ 3 A A 225 kN Figure 2-34M A es 38 Figure 2-35M 2-14. Algebraically determine the forces in members A and B of the structure in Figure 2-37. (Note: The small triangle is another way to represent a hinge or pin connection.) 2-14M. Algebraically determine the forces in members A and B of the structure in Figure 2-37M. (Note: The small triangle is another way to represent a hinge or pin connection.) 30° 777 360 kN B B B Figure 2-36M 12 30° 100 KN 30⁰ 777777 m Figure 2-37M 2-3
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