What determines the magnitude of the normal force?

Answer 1

The normal force if the force of one object holding up anothe. Ex. a block of wood on the ground. The normal force is the force applied to the wood to prevent it from sinking.

In other words, it is the objects weight. W=mg, where W=weight, m=mass, g=force of gravity.

Answer 2

When two surfaces are in contact the "Normal" force is the perpendicular (to the surfaces) force that one surface exerts on the other. It is due to the molecular strength of the surface material. For example, if you're standing on the floor gravity (your weight) is pulling you down. If the floor would break you would drop down. If the floor does not break and you do not drop down then the floor must be pushing up on your feet to cancel the downward force of gravity. This is the Normal force exerted by the floor. The Normal force will be larger if you are heavier and it will be whatever it has to be to cancel the weight, until there is so much weight that the floor finally breakes. Another example; if you are pushed against the car door when going around a curve the car door exerts a normal force on you that keeps you from flying out. Another example; if two blocks are side by side. You push horizontally on the back block and both blocks move. The front block moves because the back block exerts a "Normal" force on it where their surfaces are in contact.

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Answer 3

When a body is contact with a surface, a force is exerted by the body upon that surface. The surface is said to exert an equal and opposite force against the body known as the normal force, which is based on Newton's third law.

An example would be if a Person of 70kg was stood on the ground. Assuming that acceleration due to gravity is 10ms-2 then the person exerts a force of 700N on the ground. In opposition, the ground exerts a normal force of -700N on the person.

Answer 4

The magnitude of the normal force is determined by the weight of the object pressing against a surface. It is always perpendicular to the surface and is equal in magnitude but opposite in direction to the force exerted by the object on the surface.

Answer 5

The component of the force exerted by a surface perpendicular to itself.

Answer 6

Normal force is a reaction force caused by a gravitational contact force.

Answer 7

The Magnetic Force applied on the object

Answer 8

Newtons [N]