Inclined plane force components | Forces and Newton's laws of motion | Physics

Inclined plane force components | Forces and Newton's laws of motion | Physics | Khan Academy

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13 жыл бұрын

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Figuring out the components of the force due to gravity that are parallel and perpendicular to the surface of an inclined plane. Created by Sal Khan.
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Пікірлер: 343

@nipchip 9 жыл бұрын

A lifesaver when you teacher just doesn't explain it thoroughly enough for you to completely understand.

@loki-tl8bt 8 жыл бұрын

Ugh I feel you. Some teachers just dont give all the information in order for me to understand. They just "simplify" it.

@sitihalimah5472 8 жыл бұрын

I feel you

@irenevelasco7018 7 жыл бұрын

@marianaprokop5616 4 жыл бұрын

Me to.I don’t get it,Right?

@TahuRock 4 жыл бұрын

Tony Stark doo

@LoneWolfKTG 9 жыл бұрын

Easy trick I learned from my physics teacher on when to use sine or cosine. It works every single time and you don't have to remember sohcahtoa or which side is the "x" or "y" values: Is the line that you want to find the value of touching the angle theta? Use cosine. Is the line that you want to find the value of NOT touching the angle theta? Use sine. Touching angle = cosine Not touching angle = sine

@AoSCow 9 жыл бұрын

I've known that trick too, but I found it helpful to go through the cos, sin and tan rules anyways

@naweedbabakarkhail5210 6 жыл бұрын

thats so confusing

@ManishaSinghDirectionerDiva1D 6 жыл бұрын

Thanks a lot

@islix6596 5 жыл бұрын

What do you mean by touching

@shariquekareem2942 4 жыл бұрын

Can you prove it

@jemappellelanoosh1743 10 жыл бұрын

I just wish my physics teacher would teach us the intuition behind the mechanics we learn rather than just memorizing formulas ! Thanks Sal :)

@Suren0 9 жыл бұрын

even after all this, this is way over my fucking head this whole force competent is way too confusing... and I have an exam tomorrow fuck my life

@melissaha8963 9 жыл бұрын

fml too.

@TalhaBedir 9 жыл бұрын

Sturmovik how was it?

@sugary_sugar 8 жыл бұрын

Dude same. Test tomorrow and I am clueless as hell

@RudeGuyGames 8 жыл бұрын

+Talha Bedir Obviously did not make it. R.I.P. Sturmovik 2015-2015.

@TalhaBedir 8 жыл бұрын

RudeGuyGames :D

@farahksp7402 7 жыл бұрын

physics used to be my biggest enemy in high school. and now i'm about to study engineering in university. wish me luck😂😂😂😂 Update : i changed my major in 2018😂😂😂😂😂😂

@koushikdas1992 5 жыл бұрын

Come to hell

@azizizizi1404 5 жыл бұрын

Gudluck

@kudos6642 4 жыл бұрын

Lol I’m gonna study astrophysics

@abdullahmansoor2675 4 жыл бұрын

@Farah KSP hunn araam ee...???

@THEMATT222 3 жыл бұрын

Nice!

@DogeFrom2014 8 жыл бұрын

It's funny cause I'm watching this for the second time. Last year I watched this for Physics, now I'm watching this for vectors. It's interesting how two different subjects can overlap each other.

@rexscipio3344 6 жыл бұрын

DOGE™ Vectors never go away. They are integral to Calculus 3 as well as Physics. Its all related.

@mujtabasirius 5 жыл бұрын

What do you think vectors are ? They are a part of physics, physics can't work without vectors I mean what are you gonna do if you don't have vectors in physics. Vectors are the back bind of physics .

@dimitrijep7872 7 жыл бұрын

seems so easy when he does it...however, when my teacher explains it seems like Chinese alphabet.

@PenandPaperScience 3 жыл бұрын

We as Online Educators can explain things patiently because we choose to do this in our free time and are passionate about education

@ahmadsyed3372 Жыл бұрын

@@PenandPaperScience teacher only passionate about their salary and give no fxxck about students development

@PODMASTER9000 9 жыл бұрын

"Physics" fucks up my grade for junior year in HS

@pantheraonca3635 8 жыл бұрын

+Sean Mcgrew do you have regular, pre-ap, or ap

@huyennguyen-wk9if 8 жыл бұрын

Same here, test tomorrow and I'm lost

@pantheraonca3635 8 жыл бұрын

***** I'm taking ap physics 1

@DogeFrom2014 8 жыл бұрын

When you get to Calculus and vectors you'll finally think to yourself how easy this was.

@jusuftitosaladinp.f1244 3 жыл бұрын

this is some middle school lesson

@thedogdogification 3 жыл бұрын

Inclined plane problems absolutely ruined me in college. Even the TA's couldn't help me make sense of it (they tried!). But now the fog is beginning to clear!

@tasinal-hassan8268 7 жыл бұрын

8:30-8:34 _"Of the total,the total,the total,the total....."_

@sherainnelouisecasinto1621 8 жыл бұрын

wooow. I was lost about this subject. I mean, I know that the angle of the inclination is going to be equal to that in the center but I don't know why.. ive been seeing it in other videos but they just skip it and wont explain how they were able to conclude that. And, you did! thank you so much! its so much clearer now!

@mintymilkk 9 жыл бұрын

Those last 40 seconds or so were just the best

@911shan 9 жыл бұрын

It'd be much simpler if he used numbers and actually did the problem rather than leaving us hanging dry.

@demonhunter_0203 6 жыл бұрын

ikr

@rainsleeper4680 6 жыл бұрын

This is how it's done in lectures. It's a proof of how this method essentially works for all simple inclined planes. They use the symbols rather than actual numbers because theoretically/mathematically, the values and numbers are going to cancel/ combine very nicely. And also not every problem is the same with an inclined plane, so this also shows how you go about to set up your knowns and unknowns

@pernelle.marsjr.3461 5 жыл бұрын

While I agree that it would be a little easier, you could always just do what I did and think up of a random mass and value of theta and just follow along with the steps shown in the video.

@fatitankeris6327 2 жыл бұрын

That is quite low understanding of variables. Hope you know know why that is how it is.

@aaryajakareddy9429 6 жыл бұрын

I love the way the video goes into all the details. That way all people can understand it! Thanks a lot Sal!!

@aidanmcmillan3654 5 жыл бұрын

of the total ... of the total ... of the total ... of the total

@Spellzzzweaver 12 жыл бұрын

Best teachers start from the basics and explain it all. It helps out those who don't immediately get everything or who don't have as great a base as you do.

@lanog40 11 жыл бұрын

Sal, thanks for the refresh on this! I love studying this kind of stuff, and your videos help me memorize all the crazy math involved.

@gugla9375 10 жыл бұрын

This guy rocksss

@asparwhite86 7 жыл бұрын

Such an excellent instructor.

@randomplebian461 6 жыл бұрын

Thanks! Even after completing whole two chapters based on this concept, I was wondering where the theta b/w resultant came from. Finally, I understand it now.

@0O0O0O0O0_ 7 жыл бұрын

Thanks for this, I've watched these videos for stats, probability, vectors, some chem, and now this. It's a lifesaver in school.

@guillermooanaya5043 8 жыл бұрын

as difficult as this is to make PERFECT sense of mathematically, for me at least, it is a beautiful example of why it makes sense, thank you so much!

@risithroy4558 7 жыл бұрын

I watched this vid for work , yet I was able to apply it.Amazing teacher

@eugenepark6194 8 жыл бұрын

THANK YOU SO MUCH, THIS WAS A BIG HELP. I WAS STUCK ON THIS QUESTION FOR 2 DAYS!

@arthurmelo4193 7 жыл бұрын

This class is awesome, your explanation about the reason why you have that second "teta" angle is very original and it got better my understanding! Greetings from Brazil!

@nandha0150 7 жыл бұрын

Its amazing that they make learning process such a fun and adventure in US. Exactly what I was looking for. :) Thanks a lot !! #LovefromIndia

@kevinma715 7 жыл бұрын

you didn't invent anything...

@madron178 7 жыл бұрын

you live on your own world don't you!! :EnderDexter

@ashishjaiswal3485 6 жыл бұрын

Nandha Kumar lol..... Bro... U just happen to be in company of bad teachers

@rv.9658 6 жыл бұрын

It's just that classroom learning is boring

@nononnomonohjghdgdshrsrhsjgd 2 жыл бұрын

Your explanation is perfect. Greetings from a person with perfect expectations! I love this video. No one suggests about the magnitude. To someone who has made physics already, it can be obvious. To me, it was an intuitive hint, but not confirmed by other videos! Thanks!

@mahnoorfarooq4301 8 жыл бұрын

He made this so easy. Much appreciations!

@Jamony1 8 жыл бұрын

I was only stuck with the how we knew the two theta angles where equal and you explained it amazingly. Thanks :)

@clearflow7925 2 жыл бұрын

You are without a doubt the best teacher. Thank you!!! I finally understand

@peculiarpotter 9 жыл бұрын

My Physics AS exam is next week and I FINALLY understand this!!!! My (awful) teacher has never taught us this and my textbook is unclear, so I was stressing out but I get it now omg, thank you!

@jojogirl2008 11 жыл бұрын

Thank you so much!!! You are helping me get through my physics class and it means the world to me!!

@VaishakhNair1997 11 жыл бұрын

The intuitive part really helped. Thanks.

@daksheshgupta7045 5 жыл бұрын

Thanks of the explanation, completely cleared all my doubts

@alecsandoval1214 7 жыл бұрын

Excellent video. I was unsure as to why I couldn't do sin(theta)=gravity/hyp was not correct in finding acceleration about the hypotenuse but now I understand. Thank you Salazar

@azaezalbelthood9188 6 жыл бұрын

Thank you so much for explaining this in such a simple way.it took me a lot of effort but i wasn't able to understand it but u explained it so easily.thank you

@pernelle.marsjr.3461 5 жыл бұрын

Thanks for the help!👍🙂 Just started my first year of college. Majoring in physics but this is one of the things in classical mechanics that I have trouble with. Don't know why, it's just trig and the only formula needed is Newton's second law: F=MA. XD. I was completely over thinking it. But great video, it was very informative and easy to comprehend🙂.

@KartyMcFarty 8 жыл бұрын

Literally the exact thing I was looking for

@balasaraswathiseeni5915 11 ай бұрын

Thankyou so much. I was longing for such explanation on resolution of components of mg...

@kartikayebhardwaj6322 7 жыл бұрын

Sal, you are a life saver ☺️☺️

@ibbi_imrq 12 жыл бұрын

Thank you so much! this really helped! i have an exam in 2 weeks time and now i finally understand the inclined slope concept! thanks alot! :D

@TheIsh3000 10 жыл бұрын

you are now my free personal tutor...thank you!!!

@prakashkumarrai854 5 жыл бұрын

Knowledgeable video sir.explanation is excellent

@rhyshakachari4317 6 жыл бұрын

I just loved this video.....i thought that i will never be able to understand how we break the force into components bt just becoz of this video i m now able to ............Thank u so much

@madhavanalvala6531 4 жыл бұрын

Super explanation ,Thank you so much!

@betterffd 8 жыл бұрын

This video just makes me more confused.

@marianaprokop5616 4 жыл бұрын

I agree

@gauravGupta-bk2sw Жыл бұрын

🤣ikr

@johnnysparkleface3096 11 ай бұрын

So what was the answer? And now that I think about it, I don't even know what the question was.

@MT-sk1ln 8 ай бұрын

Yea this wasn't good

@thanaa6401 27 күн бұрын

Yall gotta go back to the physics library and start all the videos from scratch because this video implies a lot of assunptions that is not explained here because assumable you've watched the previous videos Or or that the problem could be some math gaps so you gotta go back fix it a little bit

@dr.dulalhossain7807 3 жыл бұрын

I finally understood it thanks to you.

@anantpratap2253 7 жыл бұрын

Teachers just do a kind of formality ,They never taught so deeply like this in in lectures. Thanks for the video lesson it really helped me a lot visualising the concept

@ahmedaj2000 6 жыл бұрын

THANK YOU! GOOD REVIEW FOR MY AP PHYSICS TEST TOMORROW :)

@farhananusrat3221 2 жыл бұрын

Thanks sir. I was taking lesson from my teacher and still can't understand. It's now fully clear to me. May Allah give you success and more success in near future.

@joshuaisaac3217 3 жыл бұрын

though im watching it soo late this video cleared all my doubt on this topic THANKS A LOT MATE !!!!

@nunukebede2607 7 жыл бұрын

Great explanation! thanks.

@bhimtravellers3263 3 жыл бұрын

awesome explanation thank you sir

@Violet_Vi 11 жыл бұрын

I like how your writing is improving as videos get more recent xD

@tttuu3309 11 жыл бұрын

he make evrything seem so easy woww.thanks sir!

@LifeWithGod99 10 жыл бұрын

Man, you are a life saver for a poor student who will have his physics exam soon :) Thanks!

@matthewmontez8045 5 жыл бұрын

LifeWithGod99 did you pass

@debojitkonwar802 6 жыл бұрын

fantastic video it cleared my concept

@korlapusumanthkumar4055 4 жыл бұрын

Excellent explanation thank you Soo much

@jonybear1691 5 жыл бұрын

amazing videos for full explanations and review before test

@cometolight8322 2 жыл бұрын

best tutorial i have ever seen in tube 😊Thanks a million

@Ichneumonidae2 12 жыл бұрын

awesome explanation! I have always had trouble visualizing this! :D

@holamola897 9 жыл бұрын

very helpful, thanks.

@tanbirislam7480 Жыл бұрын

Finally understood 💗💗💗.thanks khan Academy.

@thesounddevotion 5 жыл бұрын

Thank you sir.... Upload about pulley problems.

@Anonymous1677 12 жыл бұрын

You are the best teacher i will ever have!

@TheIsh3000 10 жыл бұрын

This guy is a saint

@ryjack26 11 жыл бұрын

You're the best teacher ever!

@krishnaca65 9 жыл бұрын

Very good explanation!!

@BurabariBiibaloo 3 ай бұрын

Thanks for clearing the air, sir. God bless 🙏

@quriositysquared1028 6 жыл бұрын

Thank you. That was extremely helpful

@NikAlmond 5 жыл бұрын

Thank you sooooooooooo much. The colours helped like you wouldn't believe

@midnightsilverpuppy 7 жыл бұрын

I don't get it 😕🤔

@evildust02 12 жыл бұрын

very well explained !

@MEBGOURAV-ts5wv 5 жыл бұрын

Thanks........so much....earned a new subscriber

@logadfc7886 4 жыл бұрын

I love physics and now I love your teaching

@shanthakumarpandian8747 Жыл бұрын

Very nice and good explanation... Thanks a lot

@Aminhelal210 2 жыл бұрын

Great!! Thank you

@sumandevi481 8 ай бұрын

Thanks for explaining how theta comes between two components of weight

@jashansinghlubana4633 6 жыл бұрын

It took me 2 times to see the video and understand by its mine mistake your teaching is fabulous

@UEIPratyanMajumder 7 жыл бұрын

thanx a lot...since u explain from the core...

@platotpt9528 5 жыл бұрын

Thanks Khan you helped me a lot!

@Macsk8ing 8 жыл бұрын

Pre-calc test tomorrow, thank god I'm an English major and I will never see this crap in my life again.

@07scapepking 8 жыл бұрын

and to think that this 12:42 video explains in better detail and is easier to understand then a 1.5 hour long lecture , why do i even go to class anymore lol

@Duffyyy94 6 жыл бұрын

Your literally an angel

@ZainKhan-lq2nn Жыл бұрын

you just changed my life

@sujanlysathia7580 4 жыл бұрын

Awesome I loved this video this is mind blowing

@DrMilinda 5 жыл бұрын

Thank you for this video.

@HALEdigitalARTS 13 жыл бұрын

Great job!

@TristanCorbellari 7 жыл бұрын

This is a lifesaver!

@Rhino123freak 10 жыл бұрын

THANK YOU SOO MUCH YOU CLEARED MY DOUBTS!!!!!!!

@ADGMoN3y 5 жыл бұрын

Does this same logic apply to weight lifting machines like the leg press or hack squat?

@chefjonsf 6 жыл бұрын

Thank you John Danaher for inspiring me to watch this.

@cierrapresson4163 8 жыл бұрын

this thing is great but I hate the notation he used. I wish he would just call it Fgy and Fgx.

@xXxiREDStonexXx 8 жыл бұрын

The problem with that is that Fgy is only perpendicular to the plane on one degree, while Fgperpendicular states that Fg is perpendicular. Same goes for Fgparallel