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 :)
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.
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.
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!!!!!
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......
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.
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
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
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
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.
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?
Rohan Sakhare, Excellent! Thanks for the comment, and keep up with the physics! You might also like my new website: www.universityphysics.education Cheers, Dr. A
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
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 :)
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.
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 : )
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
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
God damn it, Jorge. Get it together.
+ChrisKeaten Seriously, Jorge! Come on!
Wait, who's Jorge?
Cheers, Dr. A
Horhe, get your head in the game man!!!
feels bad man
I'm fascinated by the board marker
Pretty cool, eh? www.learning.glass
Cheers,
Dr. A
@@yoprofmatt h
Yes board maker is really cool
I was struggling for hours in tutoring and this made that concept so much easier. Thank you!
same here
Thanks sir .iam preparing for JEE MAINS and had problems in taking component your lectures are like ASMR really helps us . LOVE FROM INDIA 🇮🇳 ♥️ ❤️
Same here lol , he gave a nice explaination to check if we are right😌
Yup me too
Same here dude a JEE aspirant
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 :)
Same
I learned that if we place force as arm of angle then its cos and if not then its sine
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.
I agree. This is definitely something that trips up students regularly.
Thanks for the feedback, and keep up with the physics!
Cheers,
Dr. A
YOU MADE IT CRYSTALL CLEAR ✨ PROFESSOR.....THANK U🇮🇳❤️
The best way anyone has ever explained me and after searching a lot i got this.
Best explanation i have seen of this. Thank you so much!
Glad to hear it. And congrats on having the best UA-cam handle I have seen. Simply awesome sauce.
Cheers,
Dr. A
These are awesome explanations. They really solidify concepts that aren't always intuitive.
Infinity,
Thanks. They were not always very intuitive to me either. Keep up with the physics and you'll get there.
Cheers,
Dr. A
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.
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!!!!!
+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
Sir right now iam pursuing MBBS, iam interested in doing MD(general medicine). thank u so much for u u reply sir.
Concert
Is I'm only one who is watching this in class 11th
Great video sir... Love from India
thanks sir that cos and sin problem was a real headache .......thanks for sorting that out
Thank you sir
I am from India prepering for JEE ADVANCED
IT HELPS ME ALOT
*LOT'S OF LOVE FROM INDIA*
Big shout out to my Fandersons in India! Good luck on the JEE. I've heard that test is very challenging.
Cheers,
Dr. A
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......
i wish i found that sooner. this is such a great way to determine whether its sin or cos.
Thanks. I like it too.
Cheers,
Dr. A
thanks a whole ton sir
id been struggling with fbd but with you everything just falls into its place
thank u sooo much
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.
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
Thank you so much! This helped me tremendously before my exam. Great explanation!
thanks sir. BTW, The way you explain.. is awesome
What a glass board i loved it ❤❤
Thank you for a wonderful explanation .sir
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*
Dr. Anderson,
Thank you for the great explanation. I am studying for the OAT and this was very helpful!
Yubi
Wow wow the way he explain is fantastic 🥺🥺🥺😮😮
oh my god ur a blessing sir. Thanks for the tutorial
Ajay,
Thanks for the kudos. Keep up with the physics!
Cheers,
Dr. A
Wow. That is an incredible skill to be able to write backwards
A simple THANKS will not pay your help to me so there is a like for your fantastic way of teaching
Nikhil Tripathi,
You're very welcome. Glad you're enjoying the videos.
You might also like my new site: www.universityphysics.education
Cheers,
Dr. A
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
Awesome, glad to hear it.
Cheers,
Dr. A
That board attracted my attention not gonna lie 🤩
Excellent sir. This helps a lot . Thank you very much 😄
Thank you sir it has solved my physics problem
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
Yokesh Babu,
Great comment, thanks.
You might also like my new website: www.universityphysics.education
Cheers,
Dr. A
Thank you so much for this... Very helpful!
Ovee,
You are welcome.
Cheers,
Dr. A
Hii sir i am from India thanku for making concept clear
Thank you for this! Very helpful.
Thank you for this 🙏🏻
My physics professors NEVER showed us how to determine which is which.
Sorry to hear that. This is a tricky one, but quite useful.
Cheers,
Dr. A
Bruh, how you writing like the devil?
lol kidding, great vid. Thank you!
The devil knows physics? Well yeah, certainly knows thermo.
Cheers,
Dr. A
Matt Anderson I need help with thermodynamics
He's writing nice no problems
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
they don't actually write backwards... they write facing themselves but they flipped the video horizontally during editing.
cause i'm sure he is not a leftie
Look closely for my wedding ring.
Cheers,
Dr. A
ohh. well, impressive then. Thank you for the video by the way sir.
You are welcome. Keep up with the physics.
Cheers,
Dr. A
Ok, they flipped the video during editing but what about the students in the class ?
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.
Pain et Cirque,
Great comment, thanks. You're making me think!
You might also like my new website: www.universityphysics.education
Cheers,
Dr. A
Amazing sir.....
PATRICK,
Thanks for the comment, and keep up with the physics!
You might also like my new website: www.universityphysics.education
Cheers,
Dr. A
Thank you so much sir it helped me a lot and thanks a lot again.
Thank you so much. Sir....Selam from Turkey...
You're very welcome.
Cheers,
Dr. A
the exact one i needed!
simply awesome
I think he is really writing this in mirrored way, that's why we are able to see this in normal way.
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?
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.
love from india.....
after all these l finally understood
Rohan Sakhare,
Excellent!
Thanks for the comment, and keep up with the physics!
You might also like my new website: www.universityphysics.education
Cheers,
Dr. A
Omg nice teaching
Ravi Gill,
Thanks for the comment, and keep up with the physics!
You might also like my new website: www.universityphysics.education
Cheers,
Dr. A
Thank you Professor Strange
It just amazes me on how he write backwards what more with drawing and teaching
he writes front ways for him the video is played mirrored
@@usernotfound3904 then how do you think his students sitting infront of him were understanding and answering his questions
@@TheGreatSage_Heavensequal watch this, it cool how it works ua-cam.com/video/GJKNR_zb0BY/v-deo.html
Sir you are genius
Amazing, thank you.
You are total amazing man
Hey devil lol
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
What about the downlhill force?
Great question. Would you believe there is no downhill force? Weird, right?
Cheers,
Dr. A
From India......😊😊
His expressions are killing 😱
the marker squeak soothes me
The Limit trick is wonderful...much better than doing geometry to figure out which is theta.
Yep, I like it. Taking limits is, in general, a good way to determine if you've done something wrong.
Cheers,
Dr. A
putting jorge on the spot
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 :)
Kush,
Sounds like you're very advanced! Well done.
Try this video: ua-cam.com/video/T8Zw4y2Tsnk/v-deo.html
Cheers,
Dr. A
Thanks Dr.A the other video was helpful too :)
thank you master.
it helped me
You are welcome young padawan.
Cheers,
Dr. A
Indian students will nail it
Thanks from India
Extremely fantastic
Extremely thankful for watching.
Cheers,
Dr. A
THANK U SIR...
damn he really stuck in the mirrored plane 😞
hah now i understand completely
JORGE THAT MIC IS TOO CLOSE MAN
Thanks u sir. Ur blessings
Thanks! Keep up with the physics.
Cheers,
Dr. A
i love that pen
Jorge!
Hats off
how does he write backwards i tried it it and that is dammn difficult
i din't quite get it... how is theta equal to the one in the free body diagram?
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.
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 : )
np buddy :D
Thankyou.... Sir.
Does he write everything in opposite order?
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.
Thanks sir
Complaisant Play,
You're very welcome. Glad you're enjoying the videos.
You might also like my new site: www.universityphysics.education
Cheers,
Dr. A
Why do the components on the free body diagram have to be at right angles? What's the difference?
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
Matt Anderson oh okay, thank you
Thank u sir!!!
sir make a video on gravitational force on space
You mean general relativity? I hope to in the next few years.
Cheers,
Dr. A
Lmao I need this for my unit 3 exam in 9th grade
Excellent. Good luck.
Cheers,
Dr. A
@@yoprofmatt thank you!
I wanted the derivation of mgcos theta and mgsin theta
BRO HOW DOES THE THINGS HE WRITES NOT LOOK INVERSED IM SO CONFUSED
Camera is recording inversely too so both cancels out
how does he make this video? doesn't he have to write from right to left to do this? I'm very confused haha
i love you so much
I didn't listen anything, I am just wondering where is he writing
땡큐 땡큐 센세
Tq prof ❤
I spent 5 minutes figuring out how he writes backwards
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
great job
but cant understand one thing... is this video edited or sir is writing oppositiley???
anyone?
Sir, I am not writing oppositiley (new favorite word). Check it out here: www.learning.glass
Cheers,
Dr. A
+Matt Anderson haha
+Matt Anderson
amazing invention, sir
cheers to you
waoooooooo
Back at ya: ooooooooaw
Cheers,
Dr. A
Doctor strange IRL
He looks like Dr. Strange...😊
More like just a strange Dr.
Cheers,
Dr. A
Helpful
R u a left hander?
Thanks. Keep up with the physics!
Cheers,
Dr. A
HE IS NOT WRITING BACKWARDS.....
Normal force