Normal force
The perpendicular force exerted by a surface on an object in contact with it.
Normal force is a force exerted by a surface perpendicular to an object in contact with it. It is also known as the contact force or perpendicular force. The normal force arises whenever a surface is in contact with another object, and it is always perpendicular to the surface of contact.
The normal force is equal in magnitude but opposite in direction to the weight of the object, which is the force of gravity on the object. This means that the normal force is equal to the force exerted by the object on the surface it is in contact with.
The normal force plays an essential role in analyzing the motion of objects in contact with surfaces. For instance, when an object is on a level surface, the normal force must balance the weight force acting on the object for it to be in a state of equilibrium.
In conclusion, the normal force is a force that arises when an object is in contact with a surface. It is always perpendicular to the surface of contact and is equal in magnitude but opposite in direction to the weight of the object.
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