Visualizing vectors in 2 dimensions | Two-dimensional motion | Physics | Khan Academy

Visualizing, adding and breaking down vectors in 2 dimensions. Created by Sal Khan.

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[Peter_]

I love how Khan always gives you those "aha!" moments. ^_^

[IBeExtraCool]

That 36.899 was messin with my ocd man. I felt like taking a Sharpie and writing on my screen that it's 36.8699 lol

[tophatsheep]

Hello mr Khan, you’re vídeos are amazing and incredibly helpful, the only bad thing I read the Spanish subtitles and at points in the video they stop showing. These videos are too good for me not to tell you this and would be cool from you to find the problem. That doesn’t take away that you’ve helped me and I appreciate it.
Gracias 😁

[suprajhegde]

really helpful.but notice that angle made by the triangle is 36.8699.but in further calculations it is written as 36.899

[pinkrink]

Think as vector quantities. He is moving up at a certain velocity (3m/s) and right at a certain velocity (4m/s). The distance is not 3+4, but the velocity is 3+4 because of the direction. Together, he is moving in the direction of ||a|| at 5m/s. It's hard to explain in text, but try to get your head around that :)

[namanrajsingh]

I wish, you would have been my teacher, Sal... Telling this thing from the soul of my heart...

[robertjohn]

Wow, the graphics have come along way, great work

In the diagram he uses 36.8699 and in the calculations it changes to 36.899

[mylove]

Excellent Math travel! give me knowledge, and just like a poetry makes me happy and feel good. I need this and I love this course, thanks for my teacher.

[FranklinaFlick]

Oh my gods, THANK YOU!!!! What a lifesaver of a video!!!!

[hanashah]

You are very good at explaining things..Thank you very much, you're a lifesaver 😁

[ScorpiaX]

What I did in a 75 minute class could be summarized in Khan's 8 minute lessons.

Thank you for helping people like me to understand better ^^ or at least an essential integral lesson without taking too much time

[antacidd]

I love u so much Mr. Khan, I use khan academy to study physics everyday in summer, thank u !

[GuruprakashAcademy]

Excellent. Very informative and to the point.

[Hino_]

Very clear explanation Sir Sal! Thankyou!!

[winterstellar]

This is my favourite hobby! To visualize vectors in two dimensions! Or even three!: )

[brendanmilton]

Hi, great tutorial! where can I get the calculator from?

[ahmedkhalid]

What is name the program that you use to make this video

[spacedoutmars]

I’m a noob, how came vector a and b don’t equal c? Or does it?

[JustAnotherYoutubChn]

@Phr3shBeatz dude it'll always make a right angle triangle

[milan]

i love how its explained like we're in kindergarten