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Static Equilibrium Video Lecture | Crash Course: Civil Engineering (CE)
FAQs on Static Equilibrium Video Lecture - Crash Course: Civil Engineering (CE)
| 1. What is static equilibrium? |  |
Ans. Static equilibrium refers to a state in which an object or system is at rest and not experiencing any acceleration or net force. In this state, the forces acting on the object are balanced, resulting in a stable and stationary condition.
| 2. How is static equilibrium different from dynamic equilibrium? | |
Ans. Static equilibrium and dynamic equilibrium are two different states of an object or system. Static equilibrium refers to a state where the object is at rest, while dynamic equilibrium refers to a state where the object is in motion at a constant velocity. In static equilibrium, the net force and net torque acting on the object are zero, while in dynamic equilibrium, the net force and net torque are also zero, but the object is in motion.
| 3. What are the conditions for static equilibrium? | |
Ans. To achieve static equilibrium, two conditions must be met:
1. The vector sum of all forces acting on the object must be zero. This means that the forces in all directions (horizontal, vertical, and any other direction) must cancel each other out.
2. The vector sum of all torques acting on the object must be zero. This means that the clockwise and counterclockwise torques must balance each other out.
| 4. How is static equilibrium related to the stability of an object? | |
Ans. Static equilibrium is closely related to the stability of an object. An object in static equilibrium is considered stable if, when disturbed, it returns to its original position. This stability is determined by the position of the object's center of gravity. If the center of gravity is located within the base of support, the object is stable. If the center of gravity is outside the base of support, the object is unstable and tends to topple over.
| 5. Can an object be in static equilibrium if it is rotating? | |
Ans. Yes, an object can be in static equilibrium even if it is rotating. In such cases, the object's rotational motion is balanced and does not result in a change in angular velocity. For an object to be in static equilibrium while rotating, the sum of the torques acting on the object must be zero, and the net force acting on the object must also be zero. This ensures that both the translational and rotational motions of the object are balanced.
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Dec 31, 2024 Last updated |
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