Force is an important concept as it influences motion. It can be defined as an interaction that changes the motion of an object if unopposed. But explanation is a simple way of defining it. There are a lot of concepts and angles related to the concept of force.
Force is a vector quantity, thus it has both magnitude and direction. Therefore, one has to specify both the direction and the magnitude to describe the force acting on an object.
There are two types of force: contact and non-contact. Contact forces are the ones in which are produced when a body is in contact with another physical body. For example air resistance, friction, tension, applied force etc. Whereas the non-contact forces are produced when a force is applied on one body body by another without any contact. A good example of non-contact force will be Gravity. Also, one must note that inertia is not a force in itself as anything with mass exhibits inertia i.e., the nature to stay unchanged or resist it.
Force: Push and Pull
For instance, force has been defined as an interaction that changes the motion of an object if unopposed. When this statement is examined closely, we see the role of push-pull in this. A force that changes the direction of an object towards you, that would be a pull. On the other hand, if it moves away, it is a push. Sometimes, force is simply defined as as a push or pull upon an object resulting from the object’s interaction with another object. Hence, any kind of force is basically a push or a pull. Spring and elastic are also types of forces. The moment you push against it, it tends to resist and react or springs back with the same magnitude.
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