Consider the truss shown in the figure, built from three struts attached by three pins. The truss supports a downward force of F = 1,250 N applied at the point B. Assume the mass of the truss is negligible, the pins are frictionless, and the supports at A and C are also frictionless. (a) Assuming ?1 = 25.0° and ?2 = 49.0°, what are nA and nC? (Enter the magnitudes in N.) nA= NnC= N (b) The force any strut applies on a pin must be directed along the length of the strut as a force of tension or compression. What are the directions of the forces that the struts exert on the pins joining them? strut AB on joint A: strut AB on joint B: strut BC on joint B: strut BC on joint C: strut AC on joint A: strut AC on joint C: Find the force of tension or of compression (in N) in each of the three struts. bar AB Nbar BC Nbar AC N
Consider the truss shown in the figure, built from three struts attached by three pins. The truss supports a downward force of F = 1,250 N applied at the point B. Assume the mass of the truss is negligible, the pins are frictionless, and the supports at A and C are also frictionless. (a) Assuming ?1 = 25.0° and ?2 = 49.0°, what are nA and nC? (Enter the magnitudes in N.) nA= NnC= N (b) The force any strut applies on a pin must be directed along the length of the strut as a force of tension or compression. What are the directions of the forces that the struts exert on the pins joining them? strut AB on joint A: strut AB on joint B: strut BC on joint B: strut BC on joint C: strut AC on joint A: strut AC on joint C: Find the force of tension or of compression (in N) in each of the three struts. bar AB Nbar BC Nbar AC N
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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Question
Consider the truss shown in the figure, built from three struts attached by three pins. The truss supports a downward force of
F = 1,250 N
applied at the point B. Assume the mass of the truss is negligible, the pins are frictionless, and the supports at A and C are also frictionless.
(a)
Assuming ?1 = 25.0° and ?2 = 49.0°, what are nA and nC? (Enter the magnitudes in N.)
nA= NnC= N
(b)
The force any strut applies on a pin must be directed along the length of the strut as a force of tension or compression. What are the directions of the forces that the struts exert on the pins joining them?
strut AB on joint A: strut AB on joint B: strut BC on joint B: strut BC on joint C: strut AC on joint A: strut AC on joint C:
Find the force of tension or of compression (in N) in each of the three struts.
bar AB Nbar BC Nbar AC N
Transcribed Image Text:B
82
C
A
(i.
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