The 10-kg uniform rod is pinned at end A. If it is also subjected to a couple moment of 50 N · m, determine the smallest angle 0 for equilibrium. The spring is unstretched when 0 =0, and has a stiffness of k =60 N/m.
The 10-kg uniform rod is pinned at end A. If it is also subjected to a couple moment of 50 N · m, determine the smallest angle 0 for equilibrium. The spring is unstretched when 0 =0, and has a stiffness of k =60 N/m.
International Edition---engineering Mechanics: Statics, 4th Edition
4th Edition
ISBN:9781305501607
Author:Andrew Pytel And Jaan Kiusalaas
Publisher:Andrew Pytel And Jaan Kiusalaas
Chapter10: Virtual Work And Potential Energy
Section: Chapter Questions
Problem 10.50P
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#5
can u explain in detail whats going
plz help with this problem,
found example online
Transcribed Image Text:Draw the free body diagram of the rod.
F.
spring
k = 60 N/m
2 m
-0.5 m
mg
50 N m
A,
Apply moment equilibrium about point A.
EM = 0;
-50 – mg
L.
sine +F.
Lcos0 = 0
spring
7.
-50 – mgsine +(k8)Lcose = 0
-50 – mgsine+(kLsine)Lcose = 0
KL sin Ocos e
mg sin e = 50
2
60(2)' sin O cos0-
(10)(9.81) sine = 50
2
%3D
240 sin O cos e– 98.1sin e = 50
120 sin 20 - 98.1sine = 50
Transcribed Image Text:5)
*5-44.
The 10-kg uniform rod is pinned at end A. If it is also
subjected to a couple moment of 50 N m, determine the
smallest angle 0 for equilibrium. The spring is unstretched
when 0 =0, and has a stiffness of k=60 N/m.
B
k = 60 N/m
2 m
0.5 m-
50 N · m
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