2 dimensional projectile motion part 4

[Kricardose]

I am very happy to see the vidoe Another example of a 2-dimensional projectile motion problem after you give this

[bebeheuy]

I Love The Video It Can Increase My Knowledge Another example of a 2-dimensional projectile motion problem

[Mjhond]

Steady I Really Like This Video Another example of a 2-dimensional projectile motion problem

[WTHeavenful]

change of velocity should be [ v sub f - v sub i ], so why does at 6:17 Sal take the substitution of [ v sub y ] ???

[Seedofwinter]

I can't wait until degrees and school is being taught on the internet. These teachers are just not on par with someone like Sal, and have such a dull way of teaching. Sal always seems so merry when he's explaining.

[SharathCK]

I'm malfunctioning LOL.

[GrogSR]

What is Authentication to download this video? How do you get to authenticate ?

Where do I go to get the authentication?

dockieh@att.net

[SavoryVisage]

Plug real numbers in. I'm having trouble following what the hell is going on because you're just throwing the names in with everything else.

[MarvelsofaLifetime]

Thank you Sal, I thought that the example you gave on how the velocity in the vertical direction changed through out time, while the velocity in the horizontal direction stayed the same, was just great. Thank you for all of your amazing videos!

[laloksdm]

at 6:30 what the zero suppose to be? Vf? as in the velocity at the highest point?

[rumpeltilskin01]

Sal thanks for all ur videos....im learning super alot..well unfortunately u dont have all the lectures in physics [ how sad ] ...

kip up d gud work ^^

ur fAn,

Alarm=D

[analevy]

Why Vy/Vi is sine of 30? Should not it be cosine of 30? because Vy is adjacent and Vi hypotenuse

[ridiculousnoble]

I think it is because you are trying to find Vy....so you actually take the Sin 30 to FIND Vy.....the Sin of 30 is correct but he messed up. Vy = sin 30 the opposite is Vx and the hypotenuse is Vi so you do take the sine, but its supposed to be Vx / Vi = O/H = Vy

[horntail140]

what re u talking about Vy is the opposite of the angle while Vi is the hypotenuse of the angle. remember the opposite or adjacent is relative to the angle

[otherlander16]

where did -10 come from??

[ridiculousnoble]

gravity rounded up from 9.81

[jack10133]

damn i wish you were my physics teacher

[razzzzzzzz]

you are the greatest