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Questions and Answers
What does Newton's second law state?
What does Newton's second law state?
- $\textbf{F} = 0$
- $m = \textbf{F}\textbf{a}$
- $\textbf{F} = \textbf{0}$
- $\textbf{F} = m\textbf{a}$ (correct)
What condition must be satisfied for a system to be in static equilibrium?
What condition must be satisfied for a system to be in static equilibrium?
- $\textbf{F} = m\textbf{a}$ and $\alpha = 0$
- $\textbf{a} = 0$ and $\textbf{M} = 0$ (correct)
- $\textbf{F} = 0$ and $\alpha = 0$
- $\textbf{F} = m\textbf{a}$ and $\textbf{M} = I\alpha$
What does $\textbf{M} = I \alpha = 0$ represent for a system?
What does $\textbf{M} = I \alpha = 0$ represent for a system?
- The summation of all moments acting on the system is zero. (correct)
- The system is at rest.
- The moment of inertia of the mass is zero.
- The angular acceleration of the system is zero.
In static equilibrium, what does it mean if $\alpha = 0$?
In static equilibrium, what does it mean if $\alpha = 0$?
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What happens to a system in static equilibrium if its center of mass moves at constant velocity?
What happens to a system in static equilibrium if its center of mass moves at constant velocity?
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