Vector components from magnitude and direction

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Khan Academy

Khan Academy

8 жыл бұрын

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Vector components from magnitude and direction

Пікірлер: 38
@sammanning6178
@sammanning6178 3 жыл бұрын
Still the best voice to learn from and so much easier to understand!
@thvtsydneylyf3th077
@thvtsydneylyf3th077 2 жыл бұрын
Just like Nancy Pi
@tldrspidershark
@tldrspidershark 6 жыл бұрын
DIRECTION, AND MAGNITUDE OH YEAH
@abbyy.06
@abbyy.06 Жыл бұрын
vector!! that me. 👍cuz i’m committing crimes with both ✨direction✨ and ✨magnitude✨. OH YEAHH
@loonyhype9527
@loonyhype9527 2 жыл бұрын
Thanks! Helped me out in physics. I had no idea it’d be this easy. I guess my fear of physics really *is* irrational
@theheartdoctor9886
@theheartdoctor9886 5 жыл бұрын
It's really an awesome and amazing video, keep doing more
@shelbyj947
@shelbyj947 2 жыл бұрын
Currently studying for my physics MTEL (licensure for teaching physics) and I wanted to let you know that you have been so helpful! You break down such complex things into basic components. Thank you!
@jaycooper3058
@jaycooper3058 9 ай бұрын
Bro you have no idea how much you just helped me. My professor is awful and I a cant believe that this entire time finding the magnitudes was just sohcahtoa. I swear i was about to have a mental breakdown because i couldnt even get this.
@sinjinibanerjee_cse_7618
@sinjinibanerjee_cse_7618 7 жыл бұрын
hello... I want you to make a video on rectangular components of three dimensions. I having a problem on that particular topic. so will you please do it??
@CMacC063
@CMacC063 6 жыл бұрын
I saw one of your other videos and you were talking about vector i and vector j, and I had no idea what you were talking about. Now I understand at 8:15
@carultch
@carultch Жыл бұрын
If you ever wanted to know why we use that particular trio of i/j/k, there is a specific reason for it. You might wonder, does this have anything to do with imaginary numbers? Turns out, it does. Hamilton coined the concept of quaternions that are an extension of imaginary numbers, where each unit vector is a different variant of sqrt(-1), and he called these i/j/k, for "imaginary/joke/kooky". I made that last point up. But he really did see the unit vectors as an extension of imaginary numbers. He wanted quaternions to replace vectors in general, but it didn't catch on. The notation did, which is why we use that trio of letters. I personally prefer x hat / y hat / z hat.
@maximusdizon7267
@maximusdizon7267 8 жыл бұрын
What happened to all those fans???why only 1-2 thousand views? anyway great video SALLLL....:) :) :)
@user-ye3ez4pf9y
@user-ye3ez4pf9y 8 жыл бұрын
اكو عربي هنا ههههههه لو بس اني ^_^ good morning
@humamnissam1102
@humamnissam1102 8 жыл бұрын
+‫ضياء فليح‬‎ صباح الخير حبيبي good afternoon ^_^
@layanmj8196
@layanmj8196 5 жыл бұрын
Thank you
@themanmando2857
@themanmando2857 Жыл бұрын
Thank you.. I'm subscribed😄
@enmasked6505
@enmasked6505 2 жыл бұрын
Sal Khan...You ROCK
@elyssawatts777
@elyssawatts777 6 жыл бұрын
Thank you!!!
@hmmm9199
@hmmm9199 Жыл бұрын
THANK YOU SO MUCH
@ARMYSASHEART
@ARMYSASHEART Жыл бұрын
Thank you so much
@edventure9492
@edventure9492 Жыл бұрын
I don't think the first example is a right triangle trigo. The hypotenuse must be c=5 and not 4. Correct me if I'm wrong.
@doingnothing3712
@doingnothing3712 7 жыл бұрын
you basically cant use tangent because you wont have the opposite or the adjacent
@markrondelicalla4423
@markrondelicalla4423 6 жыл бұрын
how about 225°
@gabe5225
@gabe5225 2 жыл бұрын
bakla ka ba
@adawg4837
@adawg4837 5 жыл бұрын
OH YAH!
@bossbaghel5329
@bossbaghel5329 5 жыл бұрын
I want to know that how many components a vector can have?
@hollyanderson5901
@hollyanderson5901 4 жыл бұрын
In two dimensions it has two components, an x and a y
@augustsophomore5042
@augustsophomore5042 3 жыл бұрын
Holly Anderson thanks
@musicbrh3199
@musicbrh3199 3 жыл бұрын
Can u help me ? I wanted to know that the angle is direction and the length is it's magnitude in a vector diagram ?? Plzz cna u tell the ans.... 🙏
@gabe5225
@gabe5225 2 жыл бұрын
@@hollyanderson5901 THANKS
@carultch
@carultch Жыл бұрын
Vectors can have as many components as you want them to have. In introductory applications of vectors, it is common to limit them to 2 or 3 components, as they usually correspond to spatial dimensions, and we live in a 3-dimensional universe, thus there isn't a need for a 4th component to represent direction in space. However, there are applications with a lot more components of vectors, such as in relativity, you use 4-component vectors. You might also be using vectors to model hypothetical universes with more dimensions. Or use the components to represent quantities that may have nothing to do with spatial directions. For instance, we take dot products of vectors all the time, when we add up items on a bill. One vector is unit prices, the other vector is quantities of each line item. You have as many components of the vector as you have line items on the bill.
@oktab
@oktab Жыл бұрын
This is 11th grade stuff in india... maybe its college thing in other countries right?
@uiy23
@uiy23 3 ай бұрын
no 11 grade in us too
@thelonelynerdygamer5435
@thelonelynerdygamer5435 8 жыл бұрын
first
@coolfunmario
@coolfunmario 8 жыл бұрын
+Sury Milla fucktard...
@uditabhaumik3008
@uditabhaumik3008 4 жыл бұрын
No one cares
@user-dc8td2gb5h
@user-dc8td2gb5h 4 жыл бұрын
bouncer
@justinwinn01
@justinwinn01 2 жыл бұрын
Thank you
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