How to find Normal Force?

Question

Is the formula to find normal force:

Fn = mass x gravity?

OR

Fn = Fapplied - Fy?

This is for 2D forces

Answer 1

If an object is resting on a horizontal surface, then the normal force is equal to the object's weight, so Fn = mass x gravity, or mg.



If the object is on an inclined surface, the normal force is LESS THAN the object's weight. In that situation the formula is:



Fn = mg*cosθ



Where θ is the angle of inclination of the surface above the horizontal.



I hope that helps. Good luck!

Answer 2

the traditional reaction is created by employing sturdy products subjected to any tension interior right here way. observe that it is not significant how the stress is utilized. Any of your forces and a brilliant style of greater all reason the comparable person-friendly technique ) a) initially some tension is utilized to an infinitesmally smalll portion of a floor. This element has negligible mass and extremely few atomic bonds. b) this small section quickens and strikes interior the direction of the stress. c) because of the fact the floor is deformed the quantity of the floor section in "touch" with the stress will boost. observe this would not unavoidably recommend actual touch. it may desire to be greater effectual reported as "plagued by employing the utilized tension" d) this greater advantageous section has increasing mass and to accomplish that place many greater bonds have had to be stretched by employing ever greater advantageous quantities. observe too that whether we are managing sub atomic debris then there could not be bonds however the distortion to the particle nonetheless creates the comparable result. e) those stretched bonds are appearing in a similar thank you to springs so as that they are opposing the utilized tension. f) in some unspecified time interior the destiny the resisting forces are precisely equivalent to the utilized forces and the floor of the cloth stops accelerating. secure state is done. the stairs above persist with to something no rely how small. Forces could reason preliminary acceleration of a few portion of the article they are utilized to however the flow of that element motives distortion that throughout turn motives the traditional reaction. hence for any merchandise "each and every action has an equivalent and opposite reaction" And in any respect circumstances the reaction tension could equivalent the utilized tension. observe additionally that even in quantum mechanics, the place one particle could tunnel by yet another the recommendations do not regulate. If some thing tunnels by with out interaction then no tension has been utilized so no ordinary reaction has exceeded off. whether you're taking some thing that may not sturdy. as an occasion a gas or a liquid, you need to use each and every of the stairs above to be certain the place the traditional reaction could upward push up. At an incredibly small point issues flow internally changing the form. the two you get resisting forces F = ma for the parts that are shifting interior the physique or you have the full physique in some way incapable of shifting and to that end offering the reaction tension.

Answer 3

Fn = mass x gravity



in 2d u find the componenets of gravity, not Fn

Answer 4

Your first equation is OK for a level surface.

The second one is a mystery....



On a sloped surface, Fn = m*g*cosΘ where Θ is the angle above horizontal of the surface.