The designers of lamp mechanisms, such as that shown in the figure, usually rely on joint friction to aid in maintaining static equilibrium. For the present problem, assume that sufficient friction exists at point C to prevent rotation there, but ignore friction at all other joints. If the mass of the lamp fixture is 0.65 kg with mass center at G, determine the spring force F, necessary for equilibrium in the position shown. wwwwww 180 mm E 54 54 mm mm B 61 mm 15° C D 180 mm

The designers of lamp mechanisms, such as that shown in the figure, usually rely on joint friction to aid in maintaining static equilibrium. For the present problem, assume that sufficient friction exists at point C to prevent rotation there, but ignore friction at all other joints. If the mass of the lamp fixture is 0.65 kg with mass center at G, determine the spring force F, necessary for equilibrium in the position shown. wwwwww 180 mm E 54 54 mm mm B 61 mm 15° C D 180 mm

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 10.62P: The bar ABC is supported by three identical, ideal springs. Note that the springs are always...

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