The difference between the two and the three force members is:a)The fo...
The definition of the two force member only defines that the forces are being acted on the two points on the body. So does is the definition of the three forces members. The points of action of the three forces are three.
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The difference between the two and the three force members is:a)The fo...
The difference between the two and the three force members:
The two and three force members are terms used in the field of mechanics to describe the distribution of forces acting on a body. These terms refer to the number of points at which forces are applied to the body. Let's explore each of these terms in more detail:
Two Force Members:
A two force member is a body or structural element on which forces are applied at only two points. These forces act along the line connecting the two points of application. In other words, the forces are collinear, meaning they have the same line of action. This implies that the forces are in the same direction or opposite directions.
Three Force Members:
A three force member is a body or structural element on which forces are applied at three different points. Unlike a two force member, the forces in a three force member are not collinear. Instead, they are applied at different points and may have different lines of action. These forces can act in any direction, as long as they are not collinear.
The Difference:
The main difference between two force members and three force members lies in the number of points at which forces are applied and the distribution of these forces. Specifically:
- Number of Points: In a two force member, forces are applied at two points, while in a three force member, forces are applied at three points.
- Collinearity: In a two force member, the forces are collinear, meaning they have the same line of action. In a three force member, the forces are not collinear, and they can have different lines of action.
- Points of Application: In a two force member, the forces act on two specific points in the body. In a three force member, the forces act on three different points in the body.
Conclusion:
The correct answer is option D: The former (two force member) is acting on two points in the body while the latter (three force member) is acting on three points. This answer captures the key difference between these two types of force members based on the number of points at which forces are applied.
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