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
Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
Publisher:Kreith, Frank; Manglik, Raj M.
Chapter2: Steady Heat Conduction
Section: Chapter Questions
Problem 2.10P
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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
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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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