2-dimensional momentum problem (part 2)

[bebeheuy]

I Love The Video We finish the 2-dimensional momentum problem It Can Increase My Knowledge

[Mjhond]

Steady I Really Like This Video We finish the 2-dimensional momentum problem

[MrPEDOCTOR]

messy. 

[SwellBread]

I thought that B and A must create a right angle, post collision...

[luyla1]

SO U KNOW THIS ALL AND BECOME A TEACHER :(

[hahs4]

no one of the best thing about Sal's vids is that they are short

this is much better

[pwopwner]

Mr.Khan, would there be a way that the youtube community could protest to get you a premium account? I am pretty sure that youtube has the power to upgrade you to putting hour long videos?

[pball4lyfe72]

idk which video is next ?!? :/

[Cretan1000]

Could 3d momentum equations also be solved like this, i.e. using the same principals but 3d trig equations at the end and finding the before and after momentum in the x,y, and z axis?

[borisyadershik]

super



[imwithdumbhead]

good explanation but dirty work.

[theMacBoy11]

Sal u r very good , but I can't follow u, u r every where

[Taaan99]

GOOD JOB.. that was reaaally helpful ..

i hope that u can solve more complex probs.

in other every lesson ..

because, really u r the best teacher on YouTube ^_^

[SupremeCoalition]

thank you mister!

[GeorgeandDavis]

You're vids are excellent!!! cheers :D

[louza8]

NLLA07, shorter vids are more easily digested and navigable. this method is far superior for learning sections of phys at a time, imo.

[TinyTurtie]

thank you, finally an explanation of how this stuff works... magical...

[purplepick1]

yea i love these vids

[makaveli571]

This guy has a magical way of teaching.

[NLLA07]

There is technically not a really 10min limit people from Stanford University posted a 2hr lecture vid

[TheUFOeffect]

some accounts can post longer vids.

[Dundertaker]

@NLLA07

This video is 2 years ago, so possibly it was different back then.

[Xclann]

@NLLA07

They are youtube partners...

[xofemaleraiderxo]

or u can get the inverse tangent of 2/2.54= 38.2 degrees

[isam1335]

@xofemaleraiderxo isnt that supposed to be -38.2 degrees?

[isam1335]

@xofemaleraiderxo counterclockwise..

[isam1335]

@xofemaleraiderxo sorry i mean clockwise

[fannthom]

Sal. To be more accurate you shouldnt round off to 3.2. Leave it as 3.23, and you will get 38.2 deg

[megaelliott]

On the windows calculator, if you click view, then scientific you can actually get the inverse functions. Type in a number, click the inv button and then click sin.

[pepijnthissen]

TNX!

[Mizumi17]

wait... so since when did we stop saying Inverse Sine and begin saying Arc Sine? haha. word choice i guess right? though arc sounds better...

[doctormurray91]

Same thing

[woodenjaw]

Since the ball is going down and right, should Ball B direction  be 321.3? (38.7-360)

[scourgeofutopia]

yeah

[ScottyBGUFC]

It all depends on where you are measuring from. If measuring from the North ( the vertical ) it would be 90 degrees + 38.7. (128.7)

If measuring from the East ( Horizontal ) it would be 180 degrees + 38.7 (218.7)

[buny2t]

thank you so much

[polos505]

boy the was a long problem! finally i understand momentum in 2D...thanks

[jennyuzzy]

lol...i kno, would hv gone thru sin-1

but your gr8. thnk you. really made a huge diff

[jimy5527966]

i am taking that now in physics but i never heared of arc so yeh new idea and thx 4 the help