Instantaneous speed and velocity | One-dimensional motion | Physics | Khan Academy

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  • เผยแพร่เมื่อ 8 ก.ย. 2024
  • Instantaneous speed and velocity looks at really small displacements over really small periods of time. Created by David SantoPietro.
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    Physics on Khan Academy: Physics is the study of the basic principles that govern the physical world around us. We'll start by looking at motion itself. Then, we'll learn about forces, momentum, energy, and other concepts in lots of different physical situations. To get the most out of physics, you'll need a solid understanding of algebra and a basic understanding of trigonometry.
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ความคิดเห็น • 318

  • @sergiok681
    @sergiok681 4 ปีที่แล้ว +201

    Shame to those 126 dislikes, this video was amazing, perfectly understood what I couldn't in a 2 hours class, Thanks for the amazing work.

    • @rudhraveena2638
      @rudhraveena2638 3 ปีที่แล้ว +4

      it's now 203 shame to them

    • @tanish9267
      @tanish9267 2 ปีที่แล้ว +2

      @@rudhraveena2638 its now 252 :(

    • @muscle_enthusiast
      @muscle_enthusiast 2 ปีที่แล้ว +16

      now dislikes can't be seen 👍

    • @admiralbeluga6438
      @admiralbeluga6438 2 ปีที่แล้ว +2

      @@muscle_enthusiast hahah

    • @bacchus3592
      @bacchus3592 2 ปีที่แล้ว +3

      @@muscle_enthusiast I have the extension which makes it visible again, it's 285 now shame to them!

  • @MiguelDiaz-si2pj
    @MiguelDiaz-si2pj 3 หลายเดือนก่อน +34

    i dont understand why textbooks cant explain like this

    • @eduboy190
      @eduboy190 2 หลายเดือนก่อน

      Because that much paper would take millions of treessss 😅

    • @jaeminnieUwU
      @jaeminnieUwU 29 วันที่ผ่านมา

      Paper isn't human and paper doesn't have the same compassion required

  • @richarddickson8609
    @richarddickson8609 4 ปีที่แล้ว +252

    lord, he ran at 28.8 kmph at the end
    the motivation is real people

  • @Seerat.fatima.28
    @Seerat.fatima.28 7 ปีที่แล้ว +285

    At last after four years, now i got the concept of instantaneous velocity. LOL

    • @kamranalighallu7670
      @kamranalighallu7670 6 ปีที่แล้ว +1

      Seerat Fatima
      Hahahahaha Really

    • @kamranalighallu7670
      @kamranalighallu7670 6 ปีที่แล้ว

      Seerat Fatima 😆😆😆😆😂😂😁

    • @flare439
      @flare439 5 ปีที่แล้ว +6

      @@cgme7076 Could you really be more of a rude asshole?

    • @salishkumarnc4833
      @salishkumarnc4833 5 ปีที่แล้ว

      😁

    • @snorlax7265
      @snorlax7265 5 ปีที่แล้ว

      @@flare439 Could you really be more of an ill-bred scoundrel?

  • @user-en7kx4pf4y
    @user-en7kx4pf4y 2 หลายเดือนก่อน +16

    Who is watching it in 2024

  • @MadelMac
    @MadelMac 9 ปีที่แล้ว +33

    Ahhh this is so good! Have been scratching my head at my textbook for 10 minutes about this concept and your video totally cleared things up. Thank you!

  • @amritamaurya5013
    @amritamaurya5013 4 หลายเดือนก่อน +7

    My teacher teach this in 45min but I was sleeping and not understand a single point but now I understand this only in 4min 😅😂

  • @damian.gamlath
    @damian.gamlath 8 ปีที่แล้ว +110

    Newton walks into the room of squabbling physicists: He picks up the mic.. "Calculus bitches.." - epic mic drop

    • @deemalayed3779
      @deemalayed3779 4 ปีที่แล้ว +2

      27kdon no strong language

    • @zerkalt190
      @zerkalt190 3 ปีที่แล้ว

      @@deemalayed3779 yeahhh.. fuck strong language

    • @bladeiron
      @bladeiron หลายเดือนก่อน

      ​@@deemalayed3779Man shut up and put on your big boy pants

  • @homegirl44
    @homegirl44 7 ปีที่แล้ว +483

    LOL at "pretend" you're a physics student. Like who else would be researching these videos beside mainly physics students?

    • @kenkaneki9138
      @kenkaneki9138 3 ปีที่แล้ว +20

      studying for the mcat

    • @homegirl44
      @homegirl44 3 ปีที่แล้ว +15

      @@kenkaneki9138 Awesome, best of luck to you!

    • @fatoumimangaka580
      @fatoumimangaka580 2 ปีที่แล้ว

      Design student 🥲

    • @thegiftedpotato7582
      @thegiftedpotato7582 2 ปีที่แล้ว +33

      im 13 and im just learning random stuff for fun

    • @ZainabZehra786
      @ZainabZehra786 2 ปีที่แล้ว +5

      Studying for the MDCAT

  • @AshwinR
    @AshwinR 9 ปีที่แล้ว +221

    Wish I had a teacher Like him!😀😊

    • @bruhamit
      @bruhamit ปีที่แล้ว

      Bhai india me ese teacher nhi mil pate :(

    • @mohamedzafir8566
      @mohamedzafir8566 2 หลายเดือนก่อน

      So I'm guessing you finished college and have a job and stuff rn huh?

    • @AshwinR
      @AshwinR 2 หลายเดือนก่อน

      @@mohamedzafir8566 Yes sir, I do. And I did have a few cool teachers (Just a very few were cool, most were trash on a character level)

  • @garymcleod6772
    @garymcleod6772 4 ปีที่แล้ว +36

    Cleared up some points I 've struggled with. I'm glad I donate to Kahn Academy.

    • @CorollaChronicles
      @CorollaChronicles 3 ปีที่แล้ว +4

      It's KHAN Academy get it right goddamnit.

    • @tahirmustafa2114
      @tahirmustafa2114 2 ปีที่แล้ว

      @@CorollaChronicles he donates.....Shut up

    • @CorollaChronicles
      @CorollaChronicles 2 ปีที่แล้ว +1

      @@tahirmustafa2114 It's been a year. No need to say shut up.

    • @tahirmustafa2114
      @tahirmustafa2114 2 ปีที่แล้ว

      @@CorollaChroniclesokay......

  • @nafeesfatima3745
    @nafeesfatima3745 3 ปีที่แล้ว +4

    Besttt...never ever...since a long I scratched my head....but now a verrrryyy clearer concept...must watch it wid concentration...👍

  • @jeremiahnyagah4912
    @jeremiahnyagah4912 3 ปีที่แล้ว +5

    My professor tries his best, but this man is the MVP. Thank you!

    • @SabirHussain-vn9hw
      @SabirHussain-vn9hw 3 ปีที่แล้ว

      Could you explain the values of xsquared minus x on the graph and where they come from

  • @josephsmiley733
    @josephsmiley733 10 ปีที่แล้ว +44

    BY FAR THE COOLEST & EASIEST EXPLANATION OF THIS CONCEPT I HAVE EVER SEEN! THANK YOU!!! I do have a qustion on the last kinematic formula used to find insant velocity. In this formula: "Vinstantaneous = Vi + at", does Vi stand for initial? And as for the second formula: "V^2 = Vinstant^2 + 2ax"; is this the same formula as the first with the "2" factored out from 1/2at or is the a different formula if "t" is not given. Either way, thank you so much!

    • @maxcraftlegends2078
      @maxcraftlegends2078 2 ปีที่แล้ว +5

      Poor guy, no one has ever tried answering you for 7 years now, and sadly, I can't help you either...

    • @muscle_enthusiast
      @muscle_enthusiast 2 ปีที่แล้ว +1

      it's been 7 years and no one has given u an answer... sadly I can't help

    • @maxcraftlegends2078
      @maxcraftlegends2078 2 ปีที่แล้ว

      @@muscle_enthusiast that's exactly what I said lol

    • @irissdiaryy_
      @irissdiaryy_ 2 ปีที่แล้ว

      I am pretty sure Vi stands for V initial like the initial velocty

    • @ubaidurrehman5638
      @ubaidurrehman5638 2 ปีที่แล้ว

      You may be graduated now or even settled in life .....

  • @Maestrospace
    @Maestrospace ปีที่แล้ว +2

    Test next tomorrow
    Hopefully this'll be of help

  • @masmedia7855
    @masmedia7855 4 ปีที่แล้ว +19

    SIR, WE DO REALLY APPRECIATE YOU.......YOU TAUGHT THE CONCEPTS WITHIN MINUTES THAT I HAVE BEEN STRUGGLING FOR HOURS

  • @ay.a1
    @ay.a1 9 หลายเดือนก่อน +1

    The exam is on Sunday, and I was absent when this lesson was explained, so I did not understand it, Thank you

  • @aft0000
    @aft0000 8 ปีที่แล้ว +39

    THIS HELPED SO MUCH THANK YOU WHOEVER YOU ARE I LOVE YOU

  • @purvamali5924
    @purvamali5924 3 ปีที่แล้ว +2

    Thanks for explaning

  • @fatelover7704
    @fatelover7704 4 ปีที่แล้ว +4

    AMAZING....
    THAT INSTANTANEOUS VELOCITY WAS A BIT CONFUSING FOR ME ...
    NOW I AM ABLE TO UNDERSTAND THE CONCEPT
    THANK U.....
    WISH I HAD A TEACHER LIKE YOU.....

    • @AntiFurryJihad
      @AntiFurryJihad 3 ปีที่แล้ว

      So easy this are just learn differentiation and integration

  • @FizzahAreejfatima
    @FizzahAreejfatima ปีที่แล้ว +1

    Finalllyyyyy i understood this

  • @mrgrizzly9034
    @mrgrizzly9034 3 ปีที่แล้ว +2

    Just 4mins and it's crystal clear!!! 👍👍

  • @user-hd3ol8kt4x
    @user-hd3ol8kt4x 7 หลายเดือนก่อน +1

    your example is very perfect
    thanks so much 🙏

  • @harunosakura9798
    @harunosakura9798 2 ปีที่แล้ว +3

    0:51 sorry sir i want to ask if the instantaneous speed equals to the distance it have travelled. I mean that if its instantaneous velocity = 6m/s so will the distance of its instantaneous velocity = 6m.
    Like, the first sec ( 1s) the instan veclocity = 6m/s => after 1s, the person on this video have travelled a distance = 6m, right ?

  • @manjuchandu883
    @manjuchandu883 3 ปีที่แล้ว +2

    Good explanation thank u

  • @garima7996
    @garima7996 9 ปีที่แล้ว +8

    yeah! really,
    you nailed it!

  • @mireillelevy9748
    @mireillelevy9748 2 ปีที่แล้ว +1

    omg I died watching this lol SO GOOD!

  • @Smartguy323
    @Smartguy323 10 ปีที่แล้ว +7

    Thank you so much for that animated video! I was searching for videos and yours was the best one :)

  • @TheRadhikamusic
    @TheRadhikamusic 4 ปีที่แล้ว +1

    Wow.
    Concept is clear

  • @daddy_myers
    @daddy_myers 2 ปีที่แล้ว +3

    3:14 Ah, the video that started it all...this clip encouraged me to jump into Calculus - 6 months later, I'm knee deep in Multivariable Calculus. Thank you, Khan Academy. ❤️

    • @tashvisingh1923
      @tashvisingh1923 2 ปีที่แล้ว

      I just started learning calculus and it is so hard for me💀 Integration especially. They told us we had to learn calculus to solve these type of problems😭✋️

  • @jasdeepkaur7464
    @jasdeepkaur7464 3 ปีที่แล้ว +1

    Superb.. I got the concept easily,,
    That was very hard before.. Bt now wow... I got it... 😀😀

  • @as-qq5nx
    @as-qq5nx 4 ปีที่แล้ว +1

    After watching 10 videos on youtube I've found a good video which would worth the time I had wasted.

  • @linah79
    @linah79 2 ปีที่แล้ว +1

    Best academy ever!!!

  • @alduinfirstbornofakatosh1936
    @alduinfirstbornofakatosh1936 8 ปีที่แล้ว +5

    This is amazing! I can't believe people also did this: "_______ wouldn't give up, so I'm not giving up either!"

  • @shahabudin7184
    @shahabudin7184 10 ปีที่แล้ว +9

    awesome explanation

  • @movierecommendation6667
    @movierecommendation6667 2 ปีที่แล้ว +3

    I wonder why TH-cam five minutes videos are often better than a whole physical class. Thanks man.

  • @raikiri6251
    @raikiri6251 7 ปีที่แล้ว +7

    It's my fifth time and I am watching this cool shortly explained video! I am having a test tomorrow, so I wandered instead of reading my book and summarize this topic, why not look again at this video? Well! I did revise this whole bunch of complicated topic with just this video! Thanks a lot! 😜

  • @sanjivmahato475
    @sanjivmahato475 6 ปีที่แล้ว +2

    His explanation was very clear. Loved this video

  • @stoner.07
    @stoner.07 2 ปีที่แล้ว +1

    3:39 this very imp that when Instantneous velocity and average velocity is equal only when the velocity is constant or straight line graph

  • @aynashah8527
    @aynashah8527 4 ปีที่แล้ว +13

    0:01 pretend? 😂😭

  • @voldemort9811
    @voldemort9811 7 ปีที่แล้ว +1

    sir
    u clear all my doubt
    thnk u sooooo much

  • @Gary4DLC
    @Gary4DLC 7 ปีที่แล้ว +2

    So ... the instantaneous velocity of an object can be *negative* during a specific moment on a time interval, despite the average velocity being positive???

  • @milindangal3422
    @milindangal3422 6 ปีที่แล้ว +5

    4 minutes and 4 days....huge diff in this and my school

  • @nurfatinnazirah4424
    @nurfatinnazirah4424 4 ปีที่แล้ว +1

    Thankss!! This videos helped me a lot.

  • @ApekshaGA
    @ApekshaGA 4 ปีที่แล้ว +2

    Wow thank you!! This is amazing!!

  • @mumbumba8285
    @mumbumba8285 5 ปีที่แล้ว +1

    ok, now this is epic

  • @lunam11
    @lunam11 3 ปีที่แล้ว +1

    Simple & full of information !!

  • @raikiri6251
    @raikiri6251 7 ปีที่แล้ว +1

    I will watch this video again and again :-))

  • @darkforest3385
    @darkforest3385 2 หลายเดือนก่อน +1

    Really loved it thanks sir ❤

  • @isalalala
    @isalalala 4 ปีที่แล้ว +1

    in the calculation of the average velocity right at the beggining, it doesn't mention direction whatsoever, which is what differentiates velocity from speed, so shouldn't it be average speed instead?
    timestamp: 1:23

  • @sukanya3411
    @sukanya3411 3 ปีที่แล้ว +1

    Yeeeeaassss Khan Academy!!

  • @tarifahmad486
    @tarifahmad486 4 ปีที่แล้ว +1

    The best Video at youtube on this topic

  • @tannugupta185
    @tannugupta185 2 ปีที่แล้ว +1

    Thank u... For such lucid explanation.. 🙂

  • @jeevanram4507
    @jeevanram4507 8 ปีที่แล้ว +4

    What a Cool and Awesome Video.
    Great Job!

  • @Dr_Asma_physio
    @Dr_Asma_physio 6 ปีที่แล้ว +11

    Very nice understanding skills .........plz tell instantaneous velocity in terms of circular motion

    • @justinmalik6977
      @justinmalik6977 6 ปีที่แล้ว

      Asma Arshad radian/sec and m/s for linear,note circular motion has both of these, but centripetal force is causing the object to move circularly

  • @alkarani5693
    @alkarani5693 4 ปีที่แล้ว

    How practically you explained!!! best explanation......i want u to be my teacher...

  • @hajjarsulaimin8000
    @hajjarsulaimin8000 2 ปีที่แล้ว

    it was so difficult to understand this in class but this vid really help me

  • @jacksparrow1010
    @jacksparrow1010 10 ปีที่แล้ว +1

    thank you the explanation was very help full

  • @ousinw
    @ousinw 9 ปีที่แล้ว +2

    This is really great!!! Thank you.

  • @prathibhasiriyannavar6326
    @prathibhasiriyannavar6326 8 ปีที่แล้ว +2

    FANTABULOUS!!!!!

  • @SiddheshNan
    @SiddheshNan 6 ปีที่แล้ว +2

    This was so easy, why dont teachers teach us like this..

  • @UjjwalKumarJha-raymando
    @UjjwalKumarJha-raymando 9 ปีที่แล้ว +6

    They din't teach us Calculus at school and began with this right away. Is it normal or it's the educational system here that's flawed?

    • @spirit-ph1no
      @spirit-ph1no 8 ปีที่แล้ว +3

      +Ujjwal Kumar Jha Its very flawed. I tutor College students all the time. Those who come out of high school I would say are worse off than those who did not even had a high school math. I am not even allowed to say this but reasons is because the flaw educations teaches students memorization rather than understanding and can have students an illusion that thinks they understand when they dont.
      I have no idea if they teach Calculus in High School. They probably just jump straight to the derivative rules right away.

    • @spirit-ph1no
      @spirit-ph1no 8 ปีที่แล้ว

      Abdullah Noman taught the rules out of nowhere yes.
      I never had a High School experience so I would not know.

    • @excitedinspired9939
      @excitedinspired9939 8 ปีที่แล้ว

      I dont think education system is flawed , if u dont get something remember it & then someday u will build up upon that...: ) peace

    • @UjjwalKumarJha-raymando
      @UjjwalKumarJha-raymando 8 ปีที่แล้ว +4

      But there's always a pattern to learn things effectively. You can't use differentiation in physics without even knowing what it is.

    • @Anskurshaikh
      @Anskurshaikh 7 ปีที่แล้ว

      Yeah Indian 11th Physics is so stupid... You have finding deravitives everywhere in Physics but theres only one later chapter in Mathematics...

  • @eshalnadeem244
    @eshalnadeem244 2 ปีที่แล้ว +1

    Ooh now I get it cool!

  • @sachinpandey7645
    @sachinpandey7645 2 หลายเดือนก่อน

    It's very helpful Thankyou 🌈🌈

  • @yoseftigabu4551
    @yoseftigabu4551 5 ปีที่แล้ว +1

    Wow cool dude that was so simplified men kepp it up

  • @GreAse0MonKey27
    @GreAse0MonKey27 ปีที่แล้ว

    hope that this guy make a private channel and explain all difficult concepts in some 5 minutes vids 🥰😍😍

  • @dhruvsharma9309
    @dhruvsharma9309 2 หลายเดือนก่อน +1

    Thanks.

  • @tooxx9225
    @tooxx9225 4 ปีที่แล้ว +5

    If Newton just didn’t exist....

  • @RealestatewithSaqibNazir
    @RealestatewithSaqibNazir 7 ปีที่แล้ว +2

    Thankyou!

  • @simon672
    @simon672 7 ปีที่แล้ว +1

    THANK U HOOMAN

  • @rhoadess
    @rhoadess 11 ปีที่แล้ว +4

    medical students need to know physics too!

  • @i6MO7
    @i6MO7 10 ปีที่แล้ว +1

    Thanks , so useful.

  • @brax9062
    @brax9062 5 ปีที่แล้ว +1

    that star wars analogy is too accurate

  • @asvchannel2508
    @asvchannel2508 9 ปีที่แล้ว +1

    WELL EXPLAIN..THANKS ALOT

  • @moaazbhnas886
    @moaazbhnas886 4 ปีที่แล้ว +1

    Thank you

  • @MegaAlindo
    @MegaAlindo 10 ปีที่แล้ว +1

    you nailed it! wow

  • @itssomethingspecial0420
    @itssomethingspecial0420 2 ปีที่แล้ว +1

    What is difference between Instantaneous and non-uniform speed and velocity..??

  • @Inamatsuri
    @Inamatsuri ปีที่แล้ว +4

    Who else watching this the night before an exam

  • @mathspays
    @mathspays 10 ปีที่แล้ว +1

    cracking video!

  • @totalsilencegaming7861
    @totalsilencegaming7861 3 ปีที่แล้ว +1

    Finally watching after 7 years opps

  • @balkaran7081
    @balkaran7081 7 ปีที่แล้ว +19

    I thought that they collaborated with minute physics

    • @aang7505
      @aang7505 6 ปีที่แล้ว

      Balkaran LOOLL SAAMMEEE, I actually watched this video a few months ago on the khan academy app, and just now when I was looking for t I thought that minute physics had made it and was searching TH-cam because I forgot I had watched it on khan academy

    • @general_prodigy
      @general_prodigy 5 ปีที่แล้ว

      BRO SAME!!

  • @negritoojosclaros
    @negritoojosclaros ปีที่แล้ว +1

    thought I'll never understand this lol... arigato gosaimas

  • @planet0fbeauty
    @planet0fbeauty 3 ปีที่แล้ว

    Thankyou very musch.

  • @thomasofarrell5524
    @thomasofarrell5524 2 ปีที่แล้ว +3

    How can a TH-cam video which is 4:37 seconds give more clarity than an online physics course that costs $2000. Failed system...

    • @mishraz
      @mishraz ปีที่แล้ว

      You are right bro

  • @mohmd252
    @mohmd252 9 ปีที่แล้ว +4

    I'm gonna to teach this forr my students lol

  • @ndispotpaul3685
    @ndispotpaul3685 2 ปีที่แล้ว

    Thank you so much

  • @Binodbinubinod123
    @Binodbinubinod123 3 ปีที่แล้ว

    who disliked?? idk, no ad, clean video.got everything

  • @caebinrobinson9847
    @caebinrobinson9847 2 ปีที่แล้ว +1

    This was a life saver!

  • @timtjtim
    @timtjtim 8 ปีที่แล้ว +4

    Hu, what about Leibniz?

  • @souravchattopadhyay138
    @souravchattopadhyay138 4 ปีที่แล้ว

    Woww very nice

  • @thechangster7928
    @thechangster7928 5 ปีที่แล้ว

    thank you

  • @HamanFRD
    @HamanFRD 9 ปีที่แล้ว +1

    That was perfect.

  • @ZikyFranky
    @ZikyFranky 3 ปีที่แล้ว

    These videos make one feel stupid like the illustration makes it so easy to understand that you start questioning why you didn't understand such 'easy' concepts for 4+ years.

  • @malkkhalidkhatab407
    @malkkhalidkhatab407 5 ปีที่แล้ว

    really you are a great teacher

  • @saniyamulla7824
    @saniyamulla7824 8 ปีที่แล้ว +1

    awesome !! very well explained :)

  • @hiba8422
    @hiba8422 3 ปีที่แล้ว

    Much better than my teachers

  • @NorthMavericks-ow7jk
    @NorthMavericks-ow7jk 2 หลายเดือนก่อน +1

    I still can't grasp the idea of instantaneous velocity. How can a object or a particle have motion in just a moment. Particle needs to have a time period to do some motion, But in a moment it doesn't do any motion, how can it have any motion in a moment.

  • @soulbladeA46
    @soulbladeA46 2 ปีที่แล้ว

    Nice motivation

  • @ahmedsiddiqkhan6925
    @ahmedsiddiqkhan6925 7 ปีที่แล้ว

    #Fantaboulous sir just explain limit why it approaches to zero....

  • @raniasafira5255
    @raniasafira5255 4 ปีที่แล้ว

    thank you so much !