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The energy within a system is not maintained by a nonconservative force, but is instead released out of the system. As a result, these forces are often referred to as dissipative forces.When the path is a closed loop, the total work done by a conservative force is independent of the path that results in a given displacement and equal to zero.
Force
A force is a push or pull on an object that occurs as a result of the interaction of a body with another body. When two items interact, each of them experiences a force. when the interaction acts, the force has no effect on the two things. Forces are created when two objects collide.
A force is a vector quantity, which means that it has magnitude as well as direction. You must specify both the magnitude (size or numerical number) and the direction of a force acting on an object to completely describe it. As a result, 10 Newton does not adequately describe the force operating on an object. 10 Newton, downward, on the other hand, is a complete description of the force acting on an item; it includes both the magnitude (10 Newton) and the direction (downward). Because a force is a vector with a direction, it is usual to depict forces using diagrams in which an arrow represents the force. Moreover, because forces are vectors, the action of one force on an object is frequently cancelled by another force. Taking an instance that the effect of a 20-Newton upward force acting on a book, is cancelled by a 20-Newton downward force pressing on the book. In such cases, it is argued that the two opposing forces balance each other; the book would not be subjected to an uneven force.
Conservative force
When a body moves from one location to another, due to effect of conservative force. Conservative force acts on the body, but it is unaffected by the direction in which the body moves. The gravitational force is a form of conservative force that is extremely important in the study of numerous physics theories.
The conservative force’s most distinguishing feature is that it operates in accordance with the law of energy conservation. All forces that fall into the conservative category tend to conserve energy as they transition from one mode to the next. When the body moves from one point to another, a conservative force acts on it, and it is entirely dependent on the original and final positions of the moving object.
In the above diagram,
mg= magnitude of the gravitational force.
Here m = mass of the body
g= acceleration due to gravity
The distance traversed by the object is AB, which means that the object’s initial and final points are A and B.
The beginning and final objects are separated vertically by h. And the conservative force of gravity is based solely on this vertical displacement, rather than the path depicted in the diagram, which is the result of other forces acting on the body.
Hence, total work done is given as:
Wg= -mgh
Here h = vertical displacement
g = acceleration due to gravity
m= mass of the body
Properties of the Conservative Force
Conservative force is a typical force that we encounter in our daily lives.
Conservative force is entirely dependent on the initial and final positions of the moving object, rather than the path taken by the object.
As a result, in any closed path, the conservative force’s work must always be zero.
Another characteristic of the conservative force is that the work it does is reversible.
Nonconservative force
Work for a nonconservative force is dependent on the path travelled. An instance of a nonconservative force is friction. There is no potential energy linked with nonconservative forces because of this dependence on route. The work performed by a nonconservative force adds or subtracts mechanical energy from a system, which is an important property. Friction, for example, generates thermal energy that dissipates, depleting the system’s energy. Furthermore, even if the thermal energy is captured or kept, it cannot be fully transformed back to work, so it is also lost or unrecoverable in that sense.
Difference between non conservative and conservative force
Conservative forces have a potential, whereas non-conservative forces do not. Non-conservative forces are path dependent and do not preserve total energy, whereas conservative forces are path independent and do. If the force’s work is only reliant on the body’s initial and final positions and not on the path it takes, the force is said to be conservative. If the force’s work is depending on the path taken by the body, it is referred to as a non-conservative force. In the closed path, the conservative force performs no work. In a closed path, the work done by the non-conservative force is not zero.
Conclusion
When a body moves from one location to another, it is due to the effect of conservative force. Conservative force acts on the body, but it is unaffected by the direction in which the body moves. A force is a push or pull on an object that occurs as a result of the interaction of a body with another body. Work for a nonconservative force is dependent on the path travelled. An instance of a nonconservative force is friction. The gravitational force is a form of conservative force that is extremely important in the study of numerous physics theories. A force is a vector quantity, which means that it has magnitude as well as direction. In the closed path, the conservative force performs no work. In a closed path, the work done by the non-conservative force is not zero.
