TRUSS PROBLEM Determine: a) The magnitude and direction of the reactions at 3 and 5 b) The forces in each member of the truss and determine if the truss is being subjected to a compressive or tensile force. answers: a)R3 = 75 vertically upwards, R5 = 25 vertically upwards b)F1-2 = -29, F1-3 = -87, F1-4 = -29, F2-4 = +29, F2-5 = -29, F3-4 = +43, F4-5 = +14
TRUSS PROBLEM Determine: a) The magnitude and direction of the reactions at 3 and 5 b) The forces in each member of the truss and determine if the truss is being subjected to a compressive or tensile force. answers: a)R3 = 75 vertically upwards, R5 = 25 vertically upwards b)F1-2 = -29, F1-3 = -87, F1-4 = -29, F2-4 = +29, F2-5 = -29, F3-4 = +43, F4-5 = +14
Automotive Technology: A Systems Approach (MindTap Course List)
6th Edition
ISBN:9781133612315
Author:Jack Erjavec, Rob Thompson
Publisher:Jack Erjavec, Rob Thompson
Chapter3: Basic Theories And Math
Section: Chapter Questions
Problem 23RQ: When applying the principles of work and force, work is accomplished when force is applied to an...
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Question
TRUSS PROBLEM
Determine:
a) The magnitude and direction of the reactions at 3 and 5
b) The forces in each member of the truss and determine if the truss is being subjected
to a compressive or tensile force.
answers:
a)R3 = 75 vertically upwards, R5 = 25 vertically upwards
b)F1-2 = -29, F1-3 = -87, F1-4 = -29, F2-4 = +29, F2-5 = -29, F3-4 = +43, F4-5 = +14
please show all workings
![3
60⁰
1
60⁰
100
KN
60°
60⁰
60°
4
60°
60⁰
2
60⁰
60°
5](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F50932632-4169-47b2-9f4d-ca049ece65f3%2F84e911a5-0f3a-4ea8-ae0b-0369584a2c32%2Flclfj0oj_processed.jpeg&w=3840&q=75)
Transcribed Image Text:3
60⁰
1
60⁰
100
KN
60°
60⁰
60°
4
60°
60⁰
2
60⁰
60°
5
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How do I know which forces are positive and which are negative?
How am I supposed to know which forces are under compression or tension?
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