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Force and system of forces

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Force -
Force is the external affair that tries to elongate or deminise the beam.
It is the only thing that tries to bring some desirable or undesirable change in the body. On accounting it's definition, it is the external means or agent responsible for deformation of the body. Force is expressed in terms of magnitude and direction. Generally the magnitude of force illustrates the details of damage to the area of the body, where the force is applied. The direction of the force awakens the way by which the body will deform.  

System of force -

1) Coplanar forces
2) Collinear forces
3) Parallel forces 
4) Non - Coplanar forces

Coplanar forces - If the line of action of two or more  forces are on the same plane then it is known as the Coplanar forces.


Collinear forces -  If the line of action of more than one force is on the same line, then that system of  forces is called Collinear forces.




Parallel forces -  If the line of action of two forces are parallel to each other, then there are known as parallel forces. 



There are two types of forces on the basis of contact between the two bodies - 

1) Contact force - The force which is produced due to  the surface between the two body, is called the contact force.

2) Non contact force - The force which is produced due to  the non - surface between the two body, is called the contact force.

These are the influences of the force  -

1) The man can easily change the direction of the body having some motion in it.
2) The man can stop the body by the application of the force on the body.
3) The force helps to change the speed of the body, which is having some motion in it.
4) The man can easily change the state of the body.

There are many more types of contact force  force -
1) Muscular force
2) Frictional forces 

There are many more types of non- contact force  force -
1) Gravitational force 
2) Magnetic forces 





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What's is Magenetic force
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