Physics - What Is a Normal Force?

[@TheOrganicChemistryTutor]

Forces - Free Formula Sheet: bit.ly/4duMv3W Physics 1 Final Exam Review: kzbin.info/www/bejne/eajOmal8obN5ppI Physics PDF Worksheets: www.video-tutor.net/physics-basic-introduction.html Next Video: kzbin.info/www/bejne/iHqllpiNZqmGkMk

[@Shadowzinthemoon_479]

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[@jaydenprasad7950]

Physics is actually not that difficult when you learn it from this guy

[@sangeetatiwari4057]

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Fr bro

[@JaniMd-t5k]

Yes,I am 9 and can understand Physics easily😊

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[@jannattouehid283]

You are the only reason I am going to pass my physics class!!! Thank You!!!

[@krishnanandtiwari2023]

gr8

[@NEnigma777]

All my hours of studying and you simplified normal force in less than two minutes 🙌🏻🙌🏻🙌🏻

[@mathpower299]

Your videos are quite educational. Your explanation is way better than my professor in college back then.

[@kimayapanash8998]

i came as soon as possible...love you , love your raspy voice, love your leactures

[@agnesmadamane9715]

We started this topic on Monday it's Thursday now and I'm only getting it now .very helpful sir keep up

[@studyaccount017]

this video was a clutch, man. just to summarize tho: when an obj with mass is in contact with a surface, the weight of an object exerts a force on the surface (i.e weight force). Since the obj is in equilibrium there must be a force equal to the weight force which is the normal force, perpendicular to the surface and magnitude equal to the weight of the object. normal force increases when further force is applied to the object perpendicularly. in this case, as the net force is still zero, then the sum of the weight force and the external force is equal to the normal force. -mg -Fadditional + Fnormal = 0 (as mg and Fa are in downward direction and Fnet = 0) thus mg + Fa = Fn normal force decreases when an object's weight force is somehow decreased, which can be done by pulling it upward with a rope/string (i.e tension). in this case, the difference of mg from T (T=tension) is equivalent to normal force as Fn = mg. normal force cannot be negative in cases where tension upwards is greater than the weight force downwards. instead, the object starts to accelerate, violate newton's first law and cease to have Fnet = 0. the object is pulled away from the surface and its normal force is instead 0.

[@odd-psycho_-8423]

You're a life saver. I have a final exam tomorrow and this video helped alot ❤

[@Chrisymcmb]

Bruh, how am I finding myself still watching this mans videos for every consecutive class I take.

[@dhrumildave4221]

DUDE! U saved my life and my brain too, I was in the confusion all the time that what is the 'N' thingy in the equation for static/kinetic friction: F = mu*N. If I hadn't seen this video I would have spent hours and hours on understanding such a simple thing. Thanks a lot.

[@martinsjuniorbanda9923]

Very helpful, wish I were your student! Keep up Sir

[@currybon]

haha this gave me hope. I've got a physics exam tomorrow so hopefully I do good in it.

[@camelot5689]

I'm 8 months late but how did you do kacchan

[@currybon]

@@camelot5689 I don't exactly remember but I didn't fail any physics exams I've given so I'm sure it went well 😂

[@dreconer5167]

This is bloody systematic explanation!!!Really helped me thankyou Sir!

[@miss_janvee2]

It's 12 right now and my exam after few hours 🥲🙃🥴

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you ob weed

[@Subscribingtoeveryonewhosubsme]

Pretty much same situation

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You're very good and humble hearted girl I have seen ever in my life 😂

[@peterdelphiki]

I have 3 days, I hate physics

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Very helpful next week I have an exam BSc NQ......💖💖💖🙏

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You’re simply the best best teacher 👨‍🏫

[@leenahourani1466]

I would like to thank you so much that I've studied my whole final exam from here, wish me luck tho.

[@imjustmengo]

Im a yr late but hope u did well lol

[@shira6975]

How’d you do??!

[@rabisonkunda8713]

Wow,this is excellent..I've learnt a lot thank you

[@AhmedAdel-zj2sq]

Is the normal force always opposite the weight

[@09.chiranthansharma24]

Your explanation made me understand the difference between good and bad teachers.

[@hopeenvy]

Bro❤💓💓 You make life easier

[@seijiamasawa8190]

Highly Appreciated!

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[@nebiyatarefinne9002]

The amazing video ever

[@user_jsujemlqsk]

if a block is pressed against a wall, what will be the force exerted by wall on the block?

[@anousha2861]

10:33 isn't the tention force greater than weight force...?? ( The sign)

[@anjali298]

Nice presentation

[@adjeikwasi8650]

Simply the best 👌

[@gungunandkrishna6451]

thank u so much for this video u literally saved me plus way u explained was really simple

[@awkarbi4646]

Me just casually watching his channel from class 7 and now in class 9 i easily answer this questions in my foundation class 😉

[@shubhamupman7260]

Great vid sir!!

[@seijiamasawa8190]

Thank you for your videos!

[@alex-ht1ws]

Hey man thanks for posting these videos really help me out :D

[@thabangm.k.b.d2435]

Thanks bro✌

[@hdadam203]

You nailed it dude, thank you

[@roseb2105]

at around 3:31 in the video you drew the force of normal going upward I thought the force of normal is opposite the direction of the applied force if there a force of the rope pushing the block up shouldnt then the force of the normal be going down please explain

[@umarmuzammil7332]

love your videos

[@anushkachakraborty2914]

Thank you sir!💫😊❤

[@kalanipabasara6612]

Verry useful 👍👍👍

[@ScienceShein]

I wonder when there is a certain value of net force in vertical direction, can there be a normal force?

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[@Legoatspookie]

Love the videos boss

[@DariusKu]

If we decrease the Normal Force so that mean we decreased the Weight Force too? if not then I need an explanation.

[@Alexmar345]

Your Playlists need a better Structure. But great video like always.

[@Tay7r]

Was typing the question if the normal force could be negative as you said if it could

[@NoelaniShapiro]

You're really helpful!

[@huntersmoon7201]

Is the object affected by a normal force of it hangs in the air? ( In other words, if it isn't sitting on any kind of surface?)

[@calebpreister8454]

To my understanding, a normal force is a contact force of a surface. And you're example of a rope holding something up is a tension force, even if it makes equilibrium.

[@huntersmoon7201]

@@calebpreister8454 Thank you.

[@kpandey3441]

thanks man!

[@shizuchuan]

Where does "Normal Force" really come from? Like I know that weight came from the mass x gravity. Why and where must there be a normal force (cancelling) is there an unknown force pushing it against the weight? (I know the 3rd Law of Newton) but why is there an opposite reaction when it doesn't have friction? Or are there?

[@shizuchuan]

Note that I'm referring to a Horizontal 0 deg plane with a block of (anything) and referring to y-axis only TYSM

[@sanaesceptico]

I used to have the same question as you, but then I realized that there might be a kind of resistance happening at the atomic level. This resistance is like a force between atoms that prevents them from blending into each other. If there were no such resistance between the surface and the object, we would probably be able to pass through walls, similar to what we see in superhuman movies. From this, we can conclude that there is indeed a force of resistance acting there. Oh, and it just clicked me that it’s not really friction because friction works horizontally. Instead, the term "perpendicular resistance" or "repulsion force" is more accurate to describe this phenomenon.

[@1112634]

If T=W the block will be at rest or it will start moving at constant speed?

[@franklynogunsanmi35]

would still be at rest.

[@mimomimo6994]

Thanks teacher

[@Sam-rg7tg]

Thank you helped a lot

[@Jayesh-uf6th]

Thank you dude.. really

[@elsaizeti59]

Studying here for my physics competition.Hope I win

[@begenatube9015]

How was it?

[@jannatulnaima4186]

Where is the normal force when boat on water? And how newton third law applies when boat gravitional force downward what is the equal upward force?

[@peterdelphiki]

This doesn't work on water, try to find a buoyancy equation for that.

[@muneebrehman1420]

It was helpful.

[@miss.vickies]

thank you!

[@mohaumoloi6885]

Well explained, I also like the quality of the video. What software do you use to do this vids?

[@vinayakhuracan5182]

If the object is below the surface (upside down) where will be the normal force points along side the gravity if so why?

[@II_xD_II]

its basically suspended from the ceil right? so string constraint would work normal is not a thing here

[@II_xD_II]

draw free body diagram its impossible for it to stick to the surface without any external force acting against the gravitational one it will have some acceleration (i.e. system is not in equilibrium) on it since the force aren't balanced

[@sihamkerkatli1318]

Hello If tension force is applied isnt the normal force removed?

[@ibsatit5996]

yeah it will absolutely removed if the tension force exceeds the weight force since it doesn't need no longer support

[@Brokenhearted894]

Why cant we resolve normal reaction force

[@lol-ukn]

If the object is at rest and you push it down by a massive force until it crashes the ground and makes a hole in it does that make the forced exerted by the ball on the ground higher and stronger than the normal force? And if thats the case does that break the first law of newton?

[@rishankyadav999]

in most cases it assumed that the surface in solid, but the normal force has a limit to the breaking stress of the medium, in a breaking case, the medium on which it falls will in turn provide the normal;; , but hey thats just a theory, a physics theory

[@lol-ukn]

@@rishankyadav999 yeah that occured to me while reading the comment from 3 years ago guess i became smarter you also reminded me to continue the fnaf lore thank you dear

[@mulenga3365]

Pull out 🥲

[@andrewsndjoptimistic5262]

Thanks you sir

[@therealnishantium]

Is it also called Normal reaction Are they same? Pls respond

[@cornationboot8690]

no dude thats different

[@studyaccount017]

@@cornationboot8690 it's the same

[@Stabyy]

11minutes of youtube did hat 4 yrs of college couldnt do, wow

[@geraldomedrano5558]

Thank you!!!

[@Shadowzinthemoon_479]

meaning of perpendicular?

[@alexmax2046]

one day I hope to meet you

[@muadhalshabibi2374]

thanks

[@lalremruata544]

Does normal force is due to electromagnetic force?... Please answer me..

[@Faizan_H]

Electrostatic Repulsion

[@ibsatit5996]

Electromagnetic force is the force w/c exists b/n charged particles while normal force is just a force between surfaces and bodies(objects).normally the basic d/ce is that the former exists at microscopic while the second appears at macroscopic level.

[@williamhood7548]

I am working on a physics / philosophy theory right now for my channel, and I gotta say... The concept of normal force is seeming, to me, to show the bias toward confirmation when it comes to old physicists. What the hell is Normal force supposed to explain? Why stuff doesnt break through tables? That seems pretty bloody obvious. The strength of the force of gravity is not stronger than the structural integrity of the table. The only reason "Normal force," was named is to reinforce Newtons 3rd law. Gravity, strong and weak forces ALREADY explain why boxes dont fall through tables. If its superfluous, its pointless. - DW Post Script: Physicists on reddit are PISSED, but unable to answer my questions... so... I guess Im on to something. lol

[@carultch]

The normal force is fundamentally a manifestation of electromagnetism. As are just about all of the forces you experience at the macroscopic level, with the exception of gravity. The strong and weak nuclear forces really don't show up outside the scale of the individual atom, as these forces add up to zero by the time get a micron away from the nucleus. So every macroscopic non-gravitational force is electromagnetism at its fundamental level. Compression, tension, shear, friction, traction, buoyancy, viscosity, human pushes and pulls, air drag...all of the above are electromagnetism.

[@carultch]

Strong and weak forces have nothing to do with any of the forces you experience at the macroscopic level. Strong forces are what explain why a nucleus full of positive protons can stick together, when the protons would otherwise repel each other and neutrons would be experience no force from the protons. Weak forces explain radioactive decay. The strong force and weak forces are named as such, unimaginatively, because the strong force is stronger than electromagnetism, and the weak force is weaker than electromagnetism.

[@carultch]

What the normal force really is, is compression forces. At the atomic level, it is the local repulsion forces between adjacent atoms' outermost shell of electrons. Atoms are net neutral, and with enough distance, they are indifferent to each other in terms of electrostatics. But bring them close enough, and the outermost electrons of each adjacent atom repel each other, stronger than they attract their neighbor's nucleus. This series of inter-atomic repulsion forces, throughout the structure of a solid, is what builds the normal force. Tension forces come from inter-atomic bonding forces that hold the atoms in their crystal lattice. Shear strength comes from the fact that crystal structures are not simple cubic, and have diagonal paths among the atoms to resist sliding.

[@Lucky10279]

@@carultch Thank you! This is a huge help!

[@harkyt8740]

very nice video i got a A

[@Asatheace1]

Sometimes videos like this go way too fast but this guy is way way way too slow

[@sonamkumari3411]

Thanx sir

[@sanjeetkumar7536]

Nice

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This guy is him

[@smilegamer6778]

What will happen if normal force triples

[@somakhaled5487]

nice شكرا

[@bailey7295]

How did you get 9.8

[@olaoluwakiitan3613]

acceleration due to gravity

[@monkatsu2009]

Reaction force

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Thanksss

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Am i the only one getting these adds on videos not helping me study 😂

[@tobenthedog4018]

thank u for saving my dumb ass

[@beyond297]

That true❤

[@Urjuni]

Who sees this in march 2024

[@Thee_Sinner]

What even is the point of having this "normal" force..?

[@junaidahmedarik9847]

Uriah Siner Without normal force you won’t even be able to stand with ease, weight is downwards so resultant force will then be downwards.

[@udayanasatpathy6164]

A deeper cut

[@voidox7185]

so we can understand how the universe works

[@lol-ukn]

@ what is the point of your question?

[@jhf6261]

Nothing just naming

[@professor6767]

Great

[@beyond297]

I lovr. Your videos yx(6-78÷33)2

[@Shadowzinthemoon_479]

um i am a 4th grader, can you explain in a simpler way

[@ThePharaqh]

why do u need to know this in 4th grade

[@Shadowzinthemoon_479]

i know inclined plane though

[@shahirkhan6344]

niceeeee

[@dagmwitmelkamu9470]

i seem never to understand this stuff bc it is sooooooooo difficult to understand it

[@dunzek943]

Do yourself a favour and watch on 1.5x speed

[@rowanc1ty358]

nah

[@princessmara]

"that is not a horizontal surface..." 😂😂

[@abdifatahbudul8467]

👍👍👍👍👍👍👍👍