Force & Moments Video Lecture | Engineering Mechanics - Civil Engineering (CE)

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FAQs on Force & Moments Video Lecture - Engineering Mechanics - Civil Engineering (CE)

1. What is the definition of force in physics?
Ans. Force is defined as a push or pull on an object that can cause it to accelerate. It is a vector quantity, which means it has both magnitude and direction.
2. What are the different types of forces?
Ans. There are several types of forces, including gravitational force, electromagnetic force, strong nuclear force, weak nuclear force, frictional force, tension force, and applied force.
3. How is the moment of a force calculated?
Ans. The moment of a force is calculated by multiplying the magnitude of the force by the perpendicular distance from the pivot point (or axis of rotation) to the line of action of the force. It is also known as torque.
4. What is the principle of moments?
Ans. The principle of moments states that for an object in rotational equilibrium, the sum of the clockwise moments about any point is equal to the sum of the anticlockwise moments about the same point.
5. How does the lever arm affect the moment of a force?
Ans. The lever arm is the perpendicular distance from the pivot point to the line of action of the force. The longer the lever arm, the greater the moment of the force. This means that a force applied further away from the pivot point will have a greater turning effect.
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