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

Instantaneous speed and velocity looks at really small displacements over really small periods of time. Created by David SantoPietro.

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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[sergiok]

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.

[richarddickson]

lord, he ran at 28.8 kmph at the end


the motivation is real people

[MiguelDiaz-sipj]

i dont understand why textbooks cant explain like this

[MadelMac]

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!

[Seerat.fatima.]

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

[homegirl]

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

[garymcleod]

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

[damian.gamlath]

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

[nafeesfatima]

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

[josephsmiley]

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! 

[jeremiahnyagah]

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

[masmedia]

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

[Smartguy]

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

[aft]

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

[amritamaurya]

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

[JemalShewm]

your example is very perfect
thanks so much 🙏

[Perspectives_beyond]

Thank you so much. I learn because youtube and people like you exist. ❤

[mrgrizzly]

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

[Maestrospace]

Test next tomorrow
Hopefully this'll be of help

[sanjivmahato]

His explanation was very clear. Loved this video