I appreciate the clarification. Before taking my exam, our instructor posted some example problems for us to do. In the multiple choice two of the answers was dependent upon whether you used cosine or sine, so this is very important that a person gets this right.
@yoprofmatt
7 жыл бұрын
I agree. This is definitely something that trips up students regularly. Thanks for the feedback, and keep up with the physics! Cheers, Dr. A
@MysteriousFireball13
7 жыл бұрын
Best explanation i have seen of this. Thank you so much!
@yoprofmatt
7 жыл бұрын
Glad to hear it. And congrats on having the best KZitem handle I have seen. Simply awesome sauce. Cheers, Dr. A
@priyadarshichaudhary7905
3 жыл бұрын
The best way anyone has ever explained me and after searching a lot i got this.
@jitendrajithu7802
8 жыл бұрын
sir,your explanation is awesome, i could able to clear one of the toughest exam for medical entrance in INDIA. I am very much indebted for u. THANX A LOT PROF!!!!!
@yoprofmatt
8 жыл бұрын
+konda babu Glad to hear it. Let me know what sort of medical professional you want to become. Cheers from the USA to India! Dr. A
@jitendrajithu7802
8 жыл бұрын
Sir right now iam pursuing MBBS, iam interested in doing MD(general medicine). thank u so much for u u reply sir.
@yokeshbabu2341
4 жыл бұрын
Concert
@larebkhan9462
6 жыл бұрын
thanks sir that cos and sin problem was a real headache .......thanks for sorting that out
@niroos6819
6 жыл бұрын
thanks a whole ton sir id been struggling with fbd but with you everything just falls into its place thank u sooo much
@Tatyavinchu1990
2 жыл бұрын
Thank you sir I am from India prepering for JEE ADVANCED IT HELPS ME ALOT *LOT'S OF LOVE FROM INDIA*
@yoprofmatt
2 жыл бұрын
Big shout out to my Fandersons in India! Good luck on the JEE. I've heard that test is very challenging. Cheers, Dr. A
@prateektewary7526
7 жыл бұрын
thanks sir. BTW, The way you explain.. is awesome
@anniemonroe9285
10 ай бұрын
Can someone explain what he's writing on? I've always assumed it must be some kind of clear window but you would think the writing would appear backwards? I'm so curious to figure this out
@tempestandacomputer6951
4 жыл бұрын
This is ridiculously helpful! So is it fair to assume that (in an inclined slope problem) the vector opposing the Normal force will always be the cos(theta) component?
@carultch
2 жыл бұрын
You need to consider exactly how you've defined theta, and determine the trig terms accordingly. It isn't guaranteed to be the same each time.
@vinzchannel01
3 жыл бұрын
Thank you Professor Strange
@jonathana9236
5 жыл бұрын
putting jorge on the spot
@Fiscacondaniel
2 жыл бұрын
What about the downlhill force?
@yoprofmatt
2 жыл бұрын
Great question. Would you believe there is no downhill force? Weird, right? Cheers, Dr. A
@kushillegalshowseverything3355
8 жыл бұрын
Hello Dr.A I was looking for how to know theta with respect to axes like X axis and Y axis to take components of 1 system wrt other.Like if you have 2 bodies "not" static having an acceleration manot (pseudo force) and I have to figure out theta of manot and mg. Can you please be kind enough to explain me how to do it ? Well I sometimes think Indian studies are bit advanced lol cause Im still 16 and learning this stuff in my High School :)
@yoprofmatt
8 жыл бұрын
Kush, Sounds like you're very advanced! Well done. Try this video: kzitem.info/news/bejne/tW6Q3Wiva4akoaA Cheers, Dr. A
@kushillegalshowseverything3355
8 жыл бұрын
Thanks Dr.A the other video was helpful too :)
@shikharpandey7967
4 жыл бұрын
THANK U SIR...
@Eeswar-hh5gz
4 жыл бұрын
hah now i understand completely
@evat267
7 жыл бұрын
Jorge!
@MuhammadRizwan-gn2jl
5 жыл бұрын
waoooooooo
@yoprofmatt
5 жыл бұрын
Back at ya: ooooooooaw Cheers, Dr. A
@8a1nivetha14
5 жыл бұрын
Hats off
@sumayafelic1518
5 жыл бұрын
i love that pen
@malothuarun8174
6 жыл бұрын
Thanks u sir. Ur blessings
@yoprofmatt
6 жыл бұрын
Thanks! Keep up with the physics. Cheers, Dr. A
@gameseleven4766
5 жыл бұрын
Does he write everything in opposite order?
@SandeepSinghMango
5 жыл бұрын
No, writes from the left to the right, as usual, on a see through surface and then they mirror the video 180° to the left or right.
@vanshkulshreshtha9293
Ай бұрын
how does he write backwards i tried it it and that is dammn difficult
@likeaspinningplates2138
7 жыл бұрын
i din't quite get it... how is theta equal to the one in the free body diagram?
@americanenglishazerbaijan
6 жыл бұрын
Im happy to explain. Did you understand the limit part? As the plane gets less inclined, you would expect the downward force to appproach mg right? In fact, when angle is zero, the only component becomes mg. So then you look at your mgcostheta and confirm the observation - as theta becomes closer to zero (as plane gets less inclined) cos of theta is in fact approaching 1, and 1*mg = mg.
@likeaspinningplates2138
6 жыл бұрын
Haha thanks mate i really aprecciate your cooperation, but i already understood that less than a month ago... your explanation is very well structed though : )
@americanenglishazerbaijan
6 жыл бұрын
np buddy :D
@udaigupta2124
5 жыл бұрын
Thank u sir!!!
@stellajohn3638
5 жыл бұрын
Helpful
@stellajohn3638
5 жыл бұрын
R u a left hander?
@yoprofmatt
5 жыл бұрын
Thanks. Keep up with the physics! Cheers, Dr. A
@tamizhtamizh412
5 жыл бұрын
Tq prof ❤
@GinaLooloo
7 жыл бұрын
Why do the components on the free body diagram have to be at right angles? What's the difference?
@yoprofmatt
7 жыл бұрын
Just to simplify the math. It's so we can use the Cartesian coordinate system. XYZ are orthogonal to each other. Then you can de-couple any X or Y motion and keep the equations independent. Cheers, Dr. A
@GinaLooloo
7 жыл бұрын
Matt Anderson oh okay, thank you
@xiuqingsun3466
11 ай бұрын
BRO HOW DOES THE THINGS HE WRITES NOT LOOK INVERSED IM SO CONFUSED
@zenexzeven
11 ай бұрын
Camera is recording inversely too so both cancels out
@devanshsharma8543
4 жыл бұрын
HE IS NOT WRITING BACKWARDS.....
@AS-tv4hv
4 жыл бұрын
I spent 5 minutes figuring out how he writes backwards
@yoprofmatt
4 жыл бұрын
Abdullah Bin Saad, 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
@simransahu6272
Жыл бұрын
Normal
@clintn.kildepstein1656
3 жыл бұрын
Poor Jorge
@simranprasad8528
6 жыл бұрын
how you writting in opposite dirction
@yoprofmatt
6 жыл бұрын
Not that skilled. Answer here: www.learning.glass Cheers, Dr. A
@simranprasad8528
6 жыл бұрын
that's great dr.strange
@yoprofmatt
6 жыл бұрын
Thanks. For some reason, I get that "Dr. Strange" comment quite often. I hope Cumberbatch doesn't find out. Cheers, Dr. A
@simranprasad8528
6 жыл бұрын
what is the meaning of dr.a please explain sir.
@carultch
5 жыл бұрын
@@simranprasad8528 Probably short for Doctor Anderson. Dr = Doctor. A = Anderson.
@vanshdesai5383
Жыл бұрын
how is this guy writing in a mirror image
@bosconetworknow1487
7 жыл бұрын
how do you calculate momentum
@carultch
3 жыл бұрын
As long as relativistic effects are insignificant, momentum is mass*velocity. p=m*v. With relativity, momentum is rest mass*velocity/sqrt(1 - velocity^2/lightspeed^2). p = m*v/sqrt(1-v^2/c^2)
@MatthewMartin-u9l
10 күн бұрын
Wilson Sandra Jackson Sarah Jackson Anthony
@chriskeaten1126
8 жыл бұрын
God damn it, Jorge. Get it together.
@yoprofmatt
8 жыл бұрын
+ChrisKeaten Seriously, Jorge! Come on! Wait, who's Jorge? Cheers, Dr. A
@sydneymakgothi6173
6 жыл бұрын
Horhe, get your head in the game man!!!
@Pjazerlazer
5 жыл бұрын
feels bad man
@sebastian-benedictflore
4 жыл бұрын
I realised this guy has to write backwards in these lessons. wth
@sandhu_sandhu_sandhu
4 жыл бұрын
Thats just inverted
@alicesingh6022
4 жыл бұрын
Smart board.
@namelesss8226
3 жыл бұрын
@51_Sayan Bose_1101 then how are the students understanding? inverter glasses?
@williamzhang6197
3 жыл бұрын
@@namelesss8226 when Jorge said at 1:19 up and to your (profs) left, the prof went up and to his right. This implies the vids inverted
@saffronite_comrade
5 ай бұрын
😢😢😢😢
@viprflowrs
4 жыл бұрын
I was struggling for hours in tutoring and this made that concept so much easier. Thank you!
@Lucifer-0806
Жыл бұрын
same here
@ThugLife-gm8sn
2 жыл бұрын
Thanks sir .iam preparing for JEE MAINS and had problems in taking component your lectures are like ASMR really helps us . LOVE FROM INDIA 🇮🇳 ♥️ ❤️
@Amulya-he9ey
2 жыл бұрын
Same here lol , he gave a nice explaination to check if we are right😌
@divyanshdhoke1693
Жыл бұрын
Yup me too
@vanshkulshreshtha9293
Ай бұрын
Same here dude a JEE aspirant
@c44xKlon
7 жыл бұрын
I've learned that if you "lay down" force to the angle (close the angle) that's when it's cos and when you "stand up" force (to 90 degrees) it's sin. It was easy for me to remember this that way :)
@Yash-Class9-JEE
Ай бұрын
Same I learned that if we place force as arm of angle then its cos and if not then its sine
@mr.sutanumaity
6 жыл бұрын
Hi Benedict Cumberbatch (Dr. Strange)😜😜😜😜
@vikasbhagat6911
5 жыл бұрын
🤣🤣🤣
@24divijkapoor40
4 жыл бұрын
I thought the same and searched it on google twice bruh😂😂
@chaitanyanile1185
4 жыл бұрын
i thought the same 😂😂
@quentinleny4048
2 жыл бұрын
why include students in an informational video, you wasted a whole minute of my time asking your students what the normal force is
@yoprofmatt
2 жыл бұрын
Yeah, I was trying to make it more engaging. Some of my earlier videos that were just me alone felt kind of "flat." We edited out the students for privacy reasons, but I agree it ends of being a bit awkward. We'll keep noodling. Cheers, Dr. A
@Tatyavinchu1990
2 жыл бұрын
Yeah mam but try to understand the teacher ☺️
@yamahoppin54
7 жыл бұрын
Bruh, how you writing like the devil? lol kidding, great vid. Thank you!
@yoprofmatt
7 жыл бұрын
The devil knows physics? Well yeah, certainly knows thermo. Cheers, Dr. A
@JyothiSwaroopM
7 жыл бұрын
Matt Anderson I need help with thermodynamics
@kalyansoni4932
6 жыл бұрын
He's writing nice no problems
@SameerShaikh-jt4fu
3 жыл бұрын
Okay we have to solve a whole problem in one minute and only resolution will require 2 minutes - every neet aspirant
@skylity0780
Жыл бұрын
YOU MADE IT CRYSTALL CLEAR ✨ PROFESSOR.....THANK U🇮🇳❤️
@infinitymfg5397
7 жыл бұрын
These are awesome explanations. They really solidify concepts that aren't always intuitive.
@yoprofmatt
7 жыл бұрын
Infinity, Thanks. They were not always very intuitive to me either. Keep up with the physics and you'll get there. Cheers, Dr. A
@SolidSiren
2 жыл бұрын
Agreed. I always struggled with some of these and mixed up which should be sin and cos several times. Unfortunately my professor never told us how to know the difference.
@vishwajeetsamal5250
7 жыл бұрын
Truly SPEAKING your VIDEO has made me go Very EASE with Physics....SPECIALLY with this F.B.D concept....Really LOOKING forward to Subscribe YOUR videos....THANK YOU SO MUCH MR.Matt Anderson......
@SolidSiren
2 жыл бұрын
My physics professors NEVER showed us how to determine which is which.
@yoprofmatt
2 жыл бұрын
Sorry to hear that. This is a tricky one, but quite useful. Cheers, Dr. A
@brawler111
10 ай бұрын
Wouldn't their be a 4th force in opposition to the down force according to Newton's 3rd law?
@priyanshujoshi7683
3 жыл бұрын
Is I'm only one who is watching this in class 11th Great video sir... Love from India
@jalpanchal6914
3 жыл бұрын
I watched whole video and I understood but Can I aplly this theory to solve Normal and Axial Forces eqs relating pressure & shear stress on an airfoil following to integrate it over the whole surface of the airfoil?
@iOPTIMUSPRIME
Жыл бұрын
What a glass board i loved it ❤❤
@Lolsashalol
5 жыл бұрын
i wish i found that sooner. this is such a great way to determine whether its sin or cos.
@yoprofmatt
5 жыл бұрын
Thanks. I like it too. Cheers, Dr. A
@oscar43211234
7 жыл бұрын
what is the setup for this really cool effect of writing on a glass screen with a white marker? thanks in anticipation.
@gabolgabol1
5 жыл бұрын
total internal reflection in glass. when something touches the glass light leaks out from there
@kaviranjitha3652
3 жыл бұрын
Thank you for a wonderful explanation .sir
@syedhussain6933
3 жыл бұрын
I didn't listen anything, I am just wondering where is he writing
@AMLennon
5 жыл бұрын
Nice video. I have a question based on this video. If a block is at rest on the incline plane at an angle of 30 degrees, would the maximum frictional force that would allow the block to stay in place be calculated using 30 degrees, OR would we have to find the minimum angle of the incline plane needed for the block to slide before we can determine the maximum frictional force? That is, find that minimum angle and then substitute it in the formula for fs(max) = UsMgcos (minimum angle needed for block to slide)?
@carultch
5 жыл бұрын
Because normal force of a stationary object on an incline ends up being m*g*cos(theta), and the lateral component of the gravitational force attempting to make it slide is m*g*sin(theta), you'll notice that both trig functions appear here. At the critical angle where sliding initiates, m*g*sin(theta) = mu_s*m*g*cos(theta). Values of m and g both cancel, and we are left with mu_s = tan(theta), relating the static friction coefficient to the critical incline angle. Doesn't matter how much mass the object has, doesn't matter whether we do this experiment on Earth or the moon. A full crate and an otherwise-identical empty crate, will have the same critical angle on the same incline surface.
@aj24110
7 жыл бұрын
oh my god ur a blessing sir. Thanks for the tutorial
@yoprofmatt
7 жыл бұрын
Ajay, Thanks for the kudos. Keep up with the physics! Cheers, Dr. A
@seyalssss
7 жыл бұрын
Thank you so much! This helped me tremendously before my exam. Great explanation!
@animemes_yt
7 жыл бұрын
they don't actually write backwards... they write facing themselves but they flipped the video horizontally during editing.
@animemes_yt
7 жыл бұрын
cause i'm sure he is not a leftie
@yoprofmatt
7 жыл бұрын
Look closely for my wedding ring. Cheers, Dr. A
@animemes_yt
7 жыл бұрын
ohh. well, impressive then. Thank you for the video by the way sir.
@yoprofmatt
7 жыл бұрын
You are welcome. Keep up with the physics. Cheers, Dr. A
@simetric6551
6 жыл бұрын
Ok, they flipped the video during editing but what about the students in the class ?
@shaikrafi1576
4 жыл бұрын
It is very hard the way u are writing Who else has come to see this black board hand writing #backwards *sir u explain very nicely*
@dominickimtaguiam689
3 жыл бұрын
It is better to use head to tail triangle. The direction will be retained and easily find the force
@kimchie_kim
5 жыл бұрын
It just amazes me on how he write backwards what more with drawing and teaching
@usernotfound3904
5 жыл бұрын
he writes front ways for him the video is played mirrored
@TheGreatSage_Heavensequal
4 жыл бұрын
@@usernotfound3904 then how do you think his students sitting infront of him were understanding and answering his questions
@Sohamsta
3 жыл бұрын
@@TheGreatSage_Heavensequal watch this, it cool how it works kzitem.info/news/bejne/qICBtIaVs5RhdY4
@Stuartbigfeast
Жыл бұрын
JORGE THAT MIC IS TOO CLOSE MAN
@lovehate887
5 жыл бұрын
That board attracted my attention not gonna lie 🤩
@jonathanjoseph5419
3 жыл бұрын
*looks at this video* "I have been looking for you, all my life...."
@firebird7394
5 жыл бұрын
Sir, you were really amazing! This really helped me a lot!
@honestvalley9
2 жыл бұрын
Thank you for engaging my utmost attention and for producing this work. You've enlightened me in numerous ways and foremost is probably the part about taking the limit of theta. I can now see were one to stand a wet wooden beam measuring, 16ft x 4in x 4in, on its end and then lean it slightly against a wall and the using your setup I can calculate how much force is pushing against this wall. Correct me if I'm wrong please. If I perform a press handstand and walk up a wall using the wall to support my balance, it's evident to me much of the mg will be passing through my fingers but a percentage of my body's mg will be transferred to the wall. If theta is close to zero then a good 99% of the total mg is going go through my hands to the ground. I've never had pointed out to me the idea of reducing the subject under analysis to a dot. Brilliant.
@yoprofmatt
2 жыл бұрын
You are correct. And thanks for the feedback. Cheers, Dr. A
@kolwaski8235
3 жыл бұрын
he looks like the guy who knows the equation of time travel but stuck in past , with students who are stuck with geometry
@jyotimisra9282
3 жыл бұрын
Wow wow the way he explain is fantastic 🥺🥺🥺😮😮
@allrounder2367
Жыл бұрын
Sir, is there any way (Math theorem), where we can decide where to take the angle θ? Please do me a reply.
@painetcirque5695
4 жыл бұрын
Once you have found the Theta angle, the rest follows suit. As the professor says, just go creative, check it out, mistake yes, mistake not, and you will conclude into the right understanding. Creativity, in this case, cannot go wrong but help to find the right angle and the corresponding sinus and cosine.
@yoprofmatt
4 жыл бұрын
Pain et Cirque, Great comment, thanks. You're making me think! You might also like my new website: www.universityphysics.education Cheers, Dr. A
@AnasKhan-ur9dp
5 жыл бұрын
We are taught this in 11th grade high school in india
@w.p.9509
Жыл бұрын
how does he make this video? doesn't he have to write from right to left to do this? I'm very confused haha
@yokeshbabu2341
4 жыл бұрын
Thank you my guy Anderson Awesome 😮😮😮you are writing backwards.mm. I am studying in Aakash institute. Soon we will meet it again One of my great blessing teacher
@yoprofmatt
4 жыл бұрын
Yokesh Babu, Great comment, thanks. You might also like my new website: www.universityphysics.education Cheers, Dr. A
@bitansathi1440
3 жыл бұрын
Indian students will nail it
@Thushan_S
3 жыл бұрын
Please try to be dark a little 😂🙏 Then everything is successful.
@billypho1232
5 жыл бұрын
ese jorge poniendome mas nerviosa que el mismo
@waqaryazdan7029
4 жыл бұрын
You are total amazing man Hey devil lol
@yoprofmatt
4 жыл бұрын
Waqar Yazdan Shaik, I'm sure my wife would disagree, but thanks for the comment, and keep up with the physics! You might also like my new website: www.universityphysics.education Cheers, Dr. A
@Tushar-he6gs
3 жыл бұрын
I think he is really writing this in mirrored way, that's why we are able to see this in normal way.
@surajsharma888
3 жыл бұрын
Thank you sir it has solved my physics problem
@freshavacado143
8 жыл бұрын
Thank you so much for this... Very helpful!
@yoprofmatt
8 жыл бұрын
Ovee, You are welcome. Cheers, Dr. A
@lakshyagoswami1314
6 жыл бұрын
Thank God for this I knew something was wrong how would I know which theta to take for really tough examples but this limit way made it way easier
@yoprofmatt
6 жыл бұрын
Awesome, glad to hear it. Cheers, Dr. A
@shivaanshisingh7174
2 жыл бұрын
Thank you for this 🙏🏻
@RandyArellano-c4d
7 күн бұрын
Smith Timothy Hall Matthew Martin Patricia
@nowthenad3286
Жыл бұрын
Wow. That is an incredible skill to be able to write backwards
@anujnaramesh779
6 жыл бұрын
Excellent sir. This helps a lot . Thank you very much 😄
@PraiseTheDreadFather
4 жыл бұрын
I was having difficulties in Statics with figuring out which trig function (sin, cos, tan) to use when breaking forces down into their x and y components, but with that quick little revisit to trig (which I had a shaky foundation on from High School) really helped me out. I was getting confused as to why components of force in the X had sine in them but now I see it just comes down to basic trig.
@yoprofmatt
4 жыл бұрын
VIEWER BRO, Excellent! Great to hear. Thanks for the comment, and keep up with the physics! You might also like my new website: www.universityphysics.education Cheers, Dr. A
@addydaddy9847
4 жыл бұрын
Oh my God Benedict Cumberbatch is teaching
@jeroincababat565
11 күн бұрын
Is the dot a center of gravity? 1:11
@BringMeYesterday
7 жыл бұрын
the marker squeak soothes me
@BunzeteGaming
7 жыл бұрын
sir so that means that the mgsin theta we found is in the direction of x+ axis that's why its the same as the point of FBD of the body .I mean that we haven't yet found on the plane but on a line parallel to it. Sir thanks for the video and i hope you will clear my doubt soon.
@shreya3702
2 жыл бұрын
I wanted the derivation of mgcos theta and mgsin theta
@ohhCrazzy
Жыл бұрын
Thank you for this! Very helpful.
@peterkovinski8476
3 жыл бұрын
Fuckin stupid board. Too damn fancy
@axilator
2 жыл бұрын
The Limit trick is wonderful...much better than doing geometry to figure out which is theta.
@yoprofmatt
2 жыл бұрын
Yep, I like it. Taking limits is, in general, a good way to determine if you've done something wrong. Cheers, Dr. A
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