Which of the following statement is NOT true for a system of forces in equilibrium? O NONE OF THE GIVEN CHOICES O The body moves in a straight path with constant velocity. O The resultant is not zero. O The force polygon of the force system closes. O The body is at rest.

Which of the following statement is NOT true for a system of forces in equilibrium? O NONE OF THE GIVEN CHOICES O The body moves in a straight path with constant velocity. O The resultant is not zero. O The force polygon of the force system closes. O The body is at rest.

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 10.57P: Find the stable equilibrium position of the system described in Prob. 10.56 if m = 2.06 kg.

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Concept explainers

Chemical and Phase Equilibrium

Phase diagrams or equilibrium phase diagrams are the graphical representations that show the phase transformations of the constituting elements with respect to the pressure, temperature, and compositions. The diagrams show the conditions that limit the different phases, namely solid, liquid, and gas. The diagram can also be utilized to verify the relations between the state variables. Most of the phase diagrams are temperature-pressure phase diagrams, with the variable parameter as the composition. Usually other variables such as solubility and pressure parameters are not indicated in the phase diagram. For a one-component system (unary phase diagram), the phase diagram is generally a function of temperature and pressure as the state variables, or temperature and volume. However, for a binary system (two-phase) having two components, the phase diagram is a function of temperature and composition as the state variables only. Coexisting of the different phases of the constituting elements is indicated in the phase diagram. A ternary phase diagram can be characterized by consisting of three phases in equilibrium.

Question

Which of the following statement is NOT true for a system of forces in equilibrium?
O NONE OF THE GIVEN CHOICES
O The body moves in a straight path with constant velocity.
O The resultant is not zero.
O The force polygon of the force system closes.
O The body is at rest.

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