You have replaced my phys 298 professor. You're the only clear speaking, slow teaching, individual on KZread with a nice presentation and solid delivery. This channel deserves SOO much more attention.

@saoodalhammadi6072

Жыл бұрын

when do we use cos or sin, i'm confused

@enderfury6086

9 ай бұрын

@@saoodalhammadi6072 draw the right angle triangle. From that you find if you need cos or sin

@tenzinhoog1014

5 ай бұрын

This channel fxckin sucks

knowledge still being delivered even after 8 years of shooting it. Great job sir.

He has mastered writing letters backwards

Explaination is so clear. I've never seen it yet in my University! I just attended class to not get denying. Thanks you Prof. I hope you have a happy life.

very clear, step by step explanations. Simplifying what I consider complex things makes me feel good in class...Thanks Prof

@yoprofmatt

7 жыл бұрын

Excellent. Thanks for the comment Malak. Cheers, Dr. A

@saoodalhammadi6072

Жыл бұрын

when do we use cos or sin, i'm confused

@tawangacuna3070

Жыл бұрын

@@saoodalhammadi6072 cos to the xaxis, sin to the y axis

You literally are the best physics teacher on KZread and one of the best I've ever gained knowledge from! Kudos sir! Thankyouuu.

@saoodalhammadi6072

Жыл бұрын

when do we use cos or sin, i'm confused

Am i the only one who wonders about how he write without writing backward?

@jordies99

5 жыл бұрын

he is left handed, he is writing the same way as the ones we use the right

@brandonmwansa3714

4 жыл бұрын

Thanks professor well explained

@nishanpaudel5876

4 жыл бұрын

Its simple he just used mirror in editing

@sundeepchandy

4 жыл бұрын

check: 10:54

@sandra4676

4 жыл бұрын

Me

I wish you were my professor! Thank you for making this video Dr. A!!

It looks so cool because it looks like he is writing backwards but it's just the mirror effect I found that out by looking at your wedding ring. It looks really cool. Thanks for making this video.

@user-nf7pr8ls4i

7 жыл бұрын

JerishDoesKZread Do people usually have their wedding ring on their left hand?

@jerish2125

7 жыл бұрын

ESZQCYHNMKO EWK Before medical science discovered how the circulatory system functioned, people believed that a vein ran directly from the fourth finger on the left hand to the heart. Because of the hand-heart connection, they chose the descriptive name vena amoris, Latin for the vein of love, for this particular vein.

You sir, are an angel. Written at 2am the morning of my 8am exam on dynamics and conservation of momentum.

@saoodalhammadi6072

Жыл бұрын

when do we use cos or sin, i'm confused

@SCP--mw7tx

2 ай бұрын

@@saoodalhammadi6072 i'd recommend you to learn some trig first, learn the unit circle, and also try and understand how vectors work, it'd make understanding why a lot easier. essentially the sine works in the y axis, and the cosine in the x axis, though the only way to really understand this would be to learn the math first

watched for fun, always trying to expand my mind. honestly though the only thing that had me watch to the nd was the fact he was writing backwards and still understood the material enough to present it forward in a lecture type setting. bravo. hope my physics profs are half as educated

@yoprofmatt

4 жыл бұрын

J, Not writing backwards (I'm not that talented). The board is called Learning Glass. You can check it out at www.learning.glass Cheers, Dr. A

Sir u r a highly knowledgeable and highly student friendly person...sir ur lecture made me super expert in solving all the question of jee advanced previous year questions thanks sir..u r great

its great your uploading stuff like this.

your handwriting is therapeutic

very patiently and well explained! Thank you so much!!!!

@saoodalhammadi6072

Жыл бұрын

when do we use cos or sin, i'm confused

I needed to watched this video for more than once. I love when he asks the class: QUESTIONS ABOUT THAT? Do they genuine have no questions to ask? By the way thanks for making this valuable content available to all of us!

@yoprofmatt

5 жыл бұрын

No problem, thanks for commenting. Cheers, Dr. A

Wow, it looks like a glow stick! This video is great! Thank you.

@yoprofmatt

7 жыл бұрын

Thanks! A bit monotone, though. I added more colors in later videos. Cheers, Dr. A

Hi, do you have an explanation for collision where friction is eliminated (like in air hockey)? I was wondering on the effect of friction in collision, and planning to do an experiment on that. Thank you, in advance.

Like if you watched this during covid online classes

@yoprofmatt

4 жыл бұрын

Miguel Lopez, Thanks for the comment, and keep up with the physics! You might also like my new website: www.universityphysics.education Cheers, Dr. A

Great explaination ! Collisions in 2D has become clear as glass now !!

@yoprofmatt

7 жыл бұрын

Asiya, Excellent, glad to hear it. But don't go getting into a 2D collision now. Cheers, Dr. A

Such a great video! Thank you so much, sir, this helped me a lot!

@yoprofmatt

8 жыл бұрын

+Hanna Kozak Hanna, thanks for the kudos, and you are very welcome. Cheers, Dr. A

You made is clear and simple. Thanks you sir

Abdul c'mon bruh

As a high school student I think your videos are INCREDIBLE great set up with mics and especially the board curious how you did that ;) Love the whole set up you deserve more subs keep it up Professor!

@ZdrytchX

9 жыл бұрын

jklee225 Mirror, transparent board. Nothing that special really

you're a life saver...Thank you a lot.

I understood perfectly, thank you so much!!

the swag n attitude of physics is next level👍🏻👍🏻👍🏻👍🏻👌

Sometimes I feel frustrated when looking at questions involving many linkage between equations or messy. Ur presentation is very neat, I understood easily.

@yoprofmatt

5 жыл бұрын

Glad to hear it. Keep up with the physics. Cheers, Dr. A

I am amazed of his level of inversed writing

Thank you soooo much sir now my concept is clear. I watch many video about 2D collision but this is video is bestest ever. Thank you sooo much Sir again😇

@yoprofmatt

4 жыл бұрын

Zohaibzaryab Zaryabiqbal, You're very welcome. Glad you're enjoying the videos. You might also like my new site: www.universityphysics.education Cheers, Dr. A

@ZSiblings

4 жыл бұрын

@@yoprofmatt ofcourse sir😇

Wait i have a question, what sort of whiteboard is used in this video?

I wish you completed the answer. I understand literally everything up until what you showed, but am struggling with actually solving those angles

Very good explanation :)

I have a specific question of the part when you asked "your student" about P2ix. I just don't understand why it is zero. Thank you.

Hello matt I m your fan way of explaination is good

Hes a fking genius

very nice i think the negative sign is due to momentum is a vector quantity as it have both magnitude(size)and direction .i am i clear?.

Where do you order a board like that? I basically a glass but how?

Excellent 👌

excellent explanation with impressive personality,,,may Almighty success u,,,,thank u sir

@SabrinaXe

4 жыл бұрын

Are you the same Abdul from the video?

I get it but its also a very tedious process, thanks for the clear explanation Mr Anderson, swagger video

Great job!

@yoprofmatt

7 жыл бұрын

Thanks John. Keep up with the physics. Cheers, Dr. A

How do you write on that glass?

you cleared my concept of 2d momentum but you confused about how you were writing like that?

@axalate4572

6 жыл бұрын

Ahhh finally someone with my confusion

@narsinghnagarkoti8505

6 жыл бұрын

I think it's just a mirror view

@axalate4572

6 жыл бұрын

no i found out.its first recorded and the video inverted horizontally thats why he's writing with the left hand

wow excellent presentation

You just saved my ass today.im writing physics and after this clip,I'm definitely sure I'll kill it.👌🏼👌🏼👌🏼

@yoprofmatt

7 жыл бұрын

Great to hear. Hopefully you crushed it. Cheers, Dr. A

Perfect explanation! thanks

@yoprofmatt

7 жыл бұрын

Daniel, Thanks for the feedback. Cheers, Dr. A

Is he drawing everything backwards on glass so it looks normal for the viewer? That takes some skill (in addition to knowing the physics/math itself).

@yoprofmatt

2 жыл бұрын

Thanks. Not to burst your bubble, but there's a trick: kzread.info/dash/bejne/dYt8r9aMfq7eiaQ.html Cheers, Dr. A

I think the assumption that the two cars stick together after collision is incorrect

Thank u MacGyver

@yoprofmatt

Жыл бұрын

Duck tape and gum. All you need to defuse the bomb. Cheers, Dr. A

Maths anytime, physics like a shooting star

youre waffling

This is the perfect method to teach in 2020 pandemic

Sorry I have a question... What if the car don't stick instead collides and travels seperatly to two different directions????...... Am asking this cause your formular for collision on the x axis is contradicting my text book and google tbh

@yoprofmatt

4 жыл бұрын

_lil_ Tempo, Great question. You present a much more complicated problem. Not only do you have to conserve momentum, you have to conserve mechanical energy as well. I'll put that one on my to do list. Thanks for the comment, and keep up with the physics! You might also like my new website: www.universityphysics.education Cheers, Dr. A

Amazing session 😁😁

thank you sir for explaining the concept :)

@yoprofmatt

4 жыл бұрын

fatihah wahida, You're very welcome. Glad you're enjoying the videos. You might also like my new site: www.universityphysics.education Cheers, Dr. A

best lesson ever I see at this topic,,bd

thanks from Indonesia🇮🇩😍

Better I should say,"PERFECT!"

@yoprofmatt

7 жыл бұрын

Also a cool adjective. Cheers, Dr. A

Thanks sir, really helps

Thanks, Dr. A that helped a lot. I was kinda nervous because I didn't understand the material very well.

Anyone else felt bad for him when he asked questions and checked if everyone was understanding and no one answered

@tommys234

3 ай бұрын

No that means he did a good job teaching

all douts cleared, by the way what are head on collisions ?

@vs6x3

5 жыл бұрын

(tho I not him, me thinks )it be one-dimensional collision 🤗

how are you writing backwards throughout the whole explanation?

great !!! love it :) now do with with vectors :)

@saoodalhammadi6072

Жыл бұрын

when do we use cos or sin, i'm confused

i have question, why on y direction have you took horizontal direction as sin x

@yoprofmatt

7 жыл бұрын

Because of the location of θ. Cheers, Dr. A

@umugabekaziumusalama4648

7 жыл бұрын

thank you Dr.A . God bless you .

@yoprofmatt

7 жыл бұрын

Right on! Cheers, Dr. A

he :teaching me:how is he writting on the MAGICAL BOARD?

You can use hieroglyphs to illustrate, and better understanding. Thats what i do and soon, come à publication.

@yoprofmatt

4 жыл бұрын

Looop, Thanks for the comment, and keep up with the physics! You might also like my new website: www.universityphysics.education Cheers, Dr. A

super explanation

Thank You sir..........

Physics test in two day. I can feel my gpa rising :)

i want to love this video

Thank you so much, sir

The only thing i couldn't find an answer for : is he writing from right to left?!

@yoprofmatt

2 жыл бұрын

Nope. See kzread.info/dash/bejne/dYt8r9aMfq7eiaQ.html Cheers, Dr. A

pay attention chris.

Respect to you Professor

@yoprofmatt

2 жыл бұрын

And to you. Thanks for chiming in. Cheers, Dr. A

Thank You So Much ❤️👍🙏

@yoprofmatt

3 жыл бұрын

Diagram Master, You're very welcome. Glad you're enjoying the videos. You might also like my new site: www.universityphysics.education Cheers, Dr. A

I wish u could be my professor

You can also solve this problem using the conservation of the velocity of the center of gravity. In this particular problem, the initial center of gravity will be at a point in the 3rd (or 2nd) quadrant, on a straight line connecting m1 and m2, but also on a straight line connecting the origin. Notice that the COG point will always be at the fraction m1/(m2+m1) of the total shrinking distance between m1 and m2, away from m2. If you connect this initial center of gravity point with a straight line that passes through the origin, the COG point will always have the exact same velocity vector on this line, before and after the collision, passing right through the origin and into the 1st (or 4th) quadrants. It is very interesting (at least to me) to solve these problems with both conservation laws.

So good

@yoprofmatt

2 жыл бұрын

I appreciate that, thanks. Cheers, Dr. A

Any idea where I could find material for how to collide 2D objects that have rotational parameters as well?

@yoprofmatt

7 жыл бұрын

By rotational parameters do you mean spinning objects that interact with each other? If so, then the old "Beyblade" spinning battle tops game is what you need. Cheers, Dr. A

@0xbaadf00d

7 жыл бұрын

Matt Anderson Eh? I'm building a game engine and I'd like to make sure my collision resolution physics calculation are correct. I don't understand how that's supposed to be of help.

@yoprofmatt

7 жыл бұрын

Ah, no this wouldn't help. You might try the Phet lab: phet.colorado.edu Cheers, Dr. A

@0xbaadf00d

7 жыл бұрын

Thanks, I'll have a look.

Man what university is this so I can transfer here to get a good professor for Engineering ?

@yoprofmatt

4 жыл бұрын

Christopher, San Diego State University. Come on down! Thanks for the comment, and keep up with the physics! You might also like my new website: www.universityphysics.education Cheers, Dr. A

what if 3 cars collide?how to calculate?

@yoprofmatt

3 жыл бұрын

jhan olaer, Still conserve momentum and keep careful track of each. Thanks for the comment, and keep up with the physics! You might also like my new website: www.universityphysics.education Cheers, Dr. A

Deepest condolence to Abdul Aziz

@yoprofmatt

2 жыл бұрын

Thanks for sharing. Regards, Dr. A

Very good.

@yoprofmatt

2 жыл бұрын

Thanks.

Sir how r u writin from behind so that we could see it correctly r u writin in opposite way kinda???

@yoprofmatt

3 жыл бұрын

Anand Vatsa, Not writing backwards (I'm not that talented). The board is called Learning Glass. You can check it out at www.learning.glass Cheers, Dr. A

@ds_DNA

3 жыл бұрын

@@yoprofmatt you're talented, professor... That's true that you cannot write right to left but your explanations are so fantastic that my physics practice gets a thrust. I'm from India and a physics lover. By profession I'm a Statistician (Integrated M.Stat degree holder) but by nature I realize myself as a physics enthusiast. I love to spend my leisure with physics problems and teaching. Here in India it's difficult nowadays to go with passion but I want to contribute in physics (may be it'll be tiny but...) as much as I can. Even I have some elementary research works on Theoretical mathematics. I found your videos here in KZread, I'm thankful to you ,my passion is still inside me.

Bravo!!!!!

@yoprofmatt

7 жыл бұрын

And to you! Cheers, Dr. A

Chris look alive bruh

@yoprofmatt

8 жыл бұрын

+Samuel Souto Yeah Chris, wake up. Wait ... who's Chris? Cheers, Dr. A

Very good explaination

@yoprofmatt

6 жыл бұрын

Thank you. Cheers, Dr. A

love ... 😻😻 thank you

@yoprofmatt

7 жыл бұрын

You're welcome. 🚕 Cheers, Dr. A

He wrote p2fy instead of p1fy. Great video though

Amazing explanation!!

@yoprofmatt

7 жыл бұрын

Thanks Maruf! Cheers, Dr. A

I wish he used numbers tho.

@yoprofmatt

4 жыл бұрын

Chigozirim, It's important to keep the variable until the bitter end. Thanks for the comment, and keep up with the physics! You might also like my new website: www.universityphysics.education Cheers, Dr. A

I fuking want that Marker

@yoprofmatt

6 жыл бұрын

You can fuking have it at the fuking Learning Glass company: www.learning.glass Cheers, Dr. A

I was literally waving my arm at 8:26 😂😂

@yoprofmatt

2 жыл бұрын

Feeling a bit negative? Cheers, Dr. A

@yosacrafts5135

2 жыл бұрын

@@yoprofmatt 😂😂 I really wish you could prepare zoom programs so it could get more interactive! And thank you very much for replying!

How are you writing in air?

@yoprofmatt

4 жыл бұрын

Panni Rajula, The board is called Learning Glass. You can check it out at www.learning.glass Cheers, Dr. A

@pannirajula510

4 жыл бұрын

@@yoprofmatt thanks

Am i the only one who finds him painfully attractive?

@yoprofmatt

7 жыл бұрын

You might want to get out more. Thanks, though! Cheers, Dr. A

@gebyvargas6057

7 жыл бұрын

Thank you! This was also very helpful for my AP class.

YESS I GET TI BRAH PLS

you are amazing and I like the explanation but I can't stand the annoying noise that comes from the marker and the board.

@yoprofmatt

6 жыл бұрын

Tell me about it. My ears are still ringing. Newer videos we fixed it. Cheers, Dr. A

AND...writing backwards.

@tommys234

3 ай бұрын

he flipped the video