In analyzing the unknown forces acting on a given pin in a plane truss, obtaining a negative answer for the value of a force means O The truss is unstable. O There was a mathematical error in the calculations. O The direction that was chosen for the force was incorrect, and the correct direction of the force is opposite to the directio that was chosen in the analysis. O The value of the force cannot be determined by the Method of Joints.

In analyzing the unknown forces acting on a given pin in a plane truss, obtaining a negative answer for the value of a force means O The truss is unstable. O There was a mathematical error in the calculations. O The direction that was chosen for the force was incorrect, and the correct direction of the force is opposite to the directio that was chosen in the analysis. O The value of the force cannot be determined by the Method of Joints.

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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