Curvilinear Motion Polar Coordinates (Learn to solve any question)

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[@QuestionSolutions]

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[@QuestionSolutions]

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[@QuestionSolutions]

Yes! It's really good to know how to apply the equations we learn. Best of luck with your studies.

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[@QuestionSolutions]

I am very happy to hear that this was helpful :) Keep up the good work and I wish you the best with your studies.

[@deecee6780]

I've just watched two of your videos about curvilinear but you taught me more than what my prof taught me and i'm not even joking. He just gave us a pdf file full of screenshots from a digital book and thats it, no explanations, no virtual class. Thank you very much kind sir. God bless and keep safe always.

[@QuestionSolutions]

I am glad to hear these videos help :) Thanks so much for the comment! Best of luck with your studies.

[@deecee6780]

@@QuestionSolutions Thankss

[@MUSICXOFFICIAL01]

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[@QuestionSolutions]

Thank you very much! I appreciate your comment. :)

[@14dayztimeap8]

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[@QuestionSolutions]

Thank you very much! I am happy to hear this video was helpful. Keep up the awesome work and best wishes with your studies.

[@hatimamin4322]

After watching such 5-10 min videos that so easily explain the topic with worked examples and animations... I feel like I wasted numerous hours trying to grasp the same concepts in my university lecture halls. Kudos!

[@QuestionSolutions]

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[@mechanicalengineerresearch9685]

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[@QuestionSolutions]

Many thanks. I am glad it helped, best of luck with your studies! :)

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[@QuestionSolutions]

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SO CLEAR AND CONCISE!!1 The examples really help solidify the concept!!

[@QuestionSolutions]

Thank you very much! Best wishes with your studies and keep up the great work. You got this!

[@francissebasthian9021]

your videos are so helpful, and the fact that you speak clearly and explain every step of the way makes it even better!

[@QuestionSolutions]

Thank you very much! I hope these videos are helpful for you.

[@imanhaiqal1755]

man i didnt understand a thing from my lecturer notes, but fate brings me here, thanks man it helps alot. :) i undertand the whole chapter for less than 1 hour just by watching your video. keep it up !!!

[@QuestionSolutions]

Really glad to hear that! Best of luck with your studies :)

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[@QuestionSolutions]

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Short, clear and understandable. Thanks.

[@QuestionSolutions]

Glad to hear! You're very welcome.

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[@QuestionSolutions]

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[@QuestionSolutions]

Glad it helped! Keep up the great work and best wishes with your studies.

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Good explanation. Straight to the point sir!

[@QuestionSolutions]

Glad to hear it helped!

[@Yulaw16]

Thanks for explaining so well, I'm finally understanding it

[@QuestionSolutions]

Really glad to hear that! Best of luck with your studies.

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[@QuestionSolutions]

I am really glad to hear that! Keep up the good work and best wishes with your studies.

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[@QuestionSolutions]

I am really glad these helped! Thanks for taking the time to write a comment, much appreciated.

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[@QuestionSolutions]

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[@QuestionSolutions]

Thanks! Best wishes with your studies.

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"organic chemistry tutor" but with engineering mechanics you will blow up real good

[@QuestionSolutions]

Thank you so much, I really appreciate the comment.

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[@QuestionSolutions]

I am really happy to hear that. Really well done on your course and I hope all your others course go as great! Best wishes with all your future endeavors and thank you for taking the time to leave a comment like this, made my day!

[@salehahmed1781]

Very nice and easily understandable video. Thank you.

[@QuestionSolutions]

You're very welcome! Glad to hear it was easy to understand. Keep up the great work and best wishes with your studies.

[@TheSpaceBrosShow]

Your explanation style is perfect. Thank you! Subbed

[@QuestionSolutions]

Thank you!

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[@QuestionSolutions]

Thank you! ⭐ Best wishes with your studies.

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Amazing, exactly what I was looking for!

[@QuestionSolutions]

Glad to hear!

[@fahadhussain624]

2:23 why is it a constant value and the second question isn't?

[@QuestionSolutions]

In the first question, it says the "r" value is 200. It's always 200m. In the second question, the "r" value is an equation with respect to the angle.

[@fahadhussain624]

Thank you I have one more question at 5:07 why did you put 86.6 with a pheta dot in the magnitude equation when it wasn't needed when solving first radius equation

[@QuestionSolutions]

In the first question, theta dot was already given to us in the question. In the second question, we needed to find it. @@fahadhussain624

[@CyberMonkey03]

Great work, i'm subscribing

[@QuestionSolutions]

Thank you very much :)

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You're da GOAT no CAP

[@QuestionSolutions]

Thanks!

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You never dissapoint man!. Please make fluid mechanics A to Z too from book "Fluid Mechanics by Munson, Young, and Okiishi". My fluid mechanics teacher sucks

[@QuestionSolutions]

Thank you very much. It's on my to do list :)

[@TankiCubed]

absolutely phenomenal video. thank you so much.

[@QuestionSolutions]

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Great explication i love it !

[@QuestionSolutions]

I am glad to hear that :) Best of luck with your studies!

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Amazing explanation ❤ your videos are always help full❤❤

[@QuestionSolutions]

Thank you :) ❤❤

[@adharshreghu870]

Thank you very much.... I wish if I had found this channel sooner... Can you do videos on statics too?

[@QuestionSolutions]

There are a lot of videos on statics that's getting updated as I finish them, please see: kzbin.info/aero/PLXePpKFSUW2ZxGn6VdAPY9d7l7HowWVYL

[@woodychelton5590]

Excellent video, clearly explained. I will say it would be nice to see some higher level difficulty problems, like the ones in my class haha, maybe there is a video with some?

[@QuestionSolutions]

Maybe in the future, I will include more difficult problems :)

[@woodychelton5590]

no but it really was a great video, recapped everything really well and gave us all the basic problem solving experience to do most homeworks@@QuestionSolutions

[@QuestionSolutions]

Thank you and I am really happy it was helpful to you. Keep up the great work!@@woodychelton5590

[@salehsaeed937]

for 4:23 why did you derive with respect to radians instead of degrees?

[@QuestionSolutions]

They are time derivatives, not with degrees or radians. The theta dot represents the change of an angle with respect to time.

[@physicswallah6969]

Great video, really helped me :)

[@QuestionSolutions]

Thank you very much. I am really happy it helped you :)

[@iehteshamsaeed]

In example 3 you found angular acceleration by just differentiating the angular velocity. But in the second example when the angular displacement is given you did not find by taking the derivative of that instead you used the velocity equation. May I know why?

[@QuestionSolutions]

The 2 questions ask for 2 different things. In the 2nd example, we are looking for the angular velocity, where as in the 3rd example, we are looking for radial and transverse components of velocity.

[@kurkwelch773]

4:44 Why do we add theta prime to the end here?

[@QuestionSolutions]

Please watch: kzbin.info/www/bejne/aYrNppKdosuKoqM to understand how time derivatives work :)

[@kurkwelch773]

@@QuestionSolutions Wow, replying faster than my teacher that is paid to help me! Thanks! Subscribed :)

[@QuestionSolutions]

@@kurkwelch773 Try my best to get replies does as quick as possible, except when I am asleep :) Thank you for the sub, much appreciated.

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[@QuestionSolutions]

Glad to hear! Best of luck with your studies.

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I finally understand thanks 😭🙏

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[@QuestionSolutions]

Really glad to hear it was helpful. ❤️❤️❤️

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[@QuestionSolutions]

You're very welcome. Best of luck with your studies!

[@saqibgill2679]

Thnaks you so much.You teaches better than my university teacher 😂

[@QuestionSolutions]

You're very welcome!

[@nathanmartell4608]

Would it be possible to do a cartesian curvilinear explanation? Thank you very much!

[@QuestionSolutions]

I'll add it to my list :)

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[@QuestionSolutions]

👍

[@martin00114]

why do we use implicit differentiation, is it to get rid of the d(theta)?

[@QuestionSolutions]

It's whenever we have to get a derivative of an equation with 2 variables.

[@mezahhh]

thank you its really helps

[@QuestionSolutions]

You are very welcome. I am very happy this helped you. Best of luck with your studies :)

[@mezahhh]

Question Solutions you too sir, may you get many achievments in the future. teaching others is one of the great job ever

[@QuestionSolutions]

@@mezahhh Thank you very much Amir. I appreciate your kind words.

[@EspoirKayihura]

at 4:40, I think you made a mistake with the derivative. the theta dot was not supposed to be there.

[@QuestionSolutions]

No mistake, please see: kzbin.info/www/bejne/aYrNppKdosuKoqM

[@oseidenniskofi4183]

you have make life simple for me

[@QuestionSolutions]

Glad to hear that! Keep up the good work.

[@KD_elctrcL_N_elctrnX]

Unrelated question. Why is the the radial unit vector at any instant taken to be Ur as defined initially, but we know that it changes with time.

[@QuestionSolutions]

Sorry, where are you referring to?

[@KD_elctrcL_N_elctrnX]

@@QuestionSolutions sorry I'm not referring to any part of the video, it's just a question I have on the radial unit vector. Say you define it based on the initial conditions then the particle undergoes motion is the unit vector in the radial direction at that point different from the initial unit vector

[@iwilluploadsomeday6507]

dude cant thank you enough

[@QuestionSolutions]

No problem! Best of luck with your studies!

[@vasanthkumarcroos8605]

Very helpful sir Please give more examples

[@QuestionSolutions]

Thanks! I think if I put too many examples, the video gets far too long. Also, I think 3 or 4 examples is more than enough to understand how to use the equations. Maybe in the future, I will create some extra videos with just examples. Thank you for your input. :)

[@vasanthkumarcroos8605]

@@QuestionSolutions Thankyou so much sir

[@QuestionSolutions]

@@vasanthkumarcroos8605 You're very welcome!

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[@QuestionSolutions]

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[@togononchristiangennf.4857]

pls help, im having a problem with this problem for a short distance the train travels along a track having the shape of a spiral, r=(1000/θ)m, where θ is in radian. if it maintains a constant speed V= 20 m/s, determine the radial and transverse of components of its velocity when θ=(9π/4)rad.

[@QuestionSolutions]

Sorry, I don't answer questions like this because it opens up a flood gate of problems where I'd have to solve all the questions posted as comments. To give you a hint to your problem, draw it out, with the spiral and plug in the theta value given to you, which will give you a "r" value in meters. Also, there are forums that help students with questions as well, so please look into them :) Thanks!

[@shreyanshpandey.3281]

As radial velocity in uniform circular motion is zero then why radial acceleration exists??

[@QuestionSolutions]

Acceleration has 2 components whenever an object is travelling along a curve. One is towards the center, while one goes perpendicular to the curve. When an object is not on a curve, then radial acceleration is 0. So if its on a curve, it will have a radial acceleration, but if its on a straight path, then there is no radial acceleration.

[@camerongillespie870]

Thank you

[@QuestionSolutions]

You're welcome!

[@yanyan5195]

hi, how did 0.1 becomes 0.025rad/s^2?

[@QuestionSolutions]

I don't know where you're referring to. Please use timestamps. Thanks!

[@yanyan5195]

@@QuestionSolutions at 2:22

[@QuestionSolutions]

It didn't, it's just a value given to us in the question. It gives both 0.1 and 0.025. @@yanyan5195

[@REANS]

Professor: Why aren't you attending my classes? Explain your absences please. Me After watching a summery of 7 minutes video that literally explains everything my professor tried to say in 4 hours worth of teaching:

[@QuestionSolutions]

😅 I hope all the videos will be helpful to you. Keep up the good work!

[@k.shanthanu983]

thanks bro

[@QuestionSolutions]

You're welcome!

[@rekipa7579]

Will you do give examples and show how to solve problems you don't explain where all the equations are coming from :(

[@QuestionSolutions]

So these videos are meant to be a supplement to your textbook/ lectures. They aren't meant to be a replacement. They are there only to reinforce what you learned in class and just to show how to solve examples because most of the time, a lot of theory is taught in class with few examples. To see derivations of these equations, please see your textbook, or look for channels that showcase theory over examples :)

[@rekipa7579]

@@QuestionSolutions ok fair enough

[@llltv2815]

Why 0.5 length given in last question

[@QuestionSolutions]

Sometimes, extra values are given without reason. They might be for another segment of a question.

[@llltv2815]

@@QuestionSolutions the expression for accln in transvwrs N radial direction are what we expect but some extra term being added or subtracted Like a(r)=r''(which should be true because its accln in that dirction but why we sub theta.^2? How to get feel for it

[@QuestionSolutions]

@@llltv2815 I am sorry but I am unsure of what you are asking? θ dot^2 is part of the radial acceleration, it's just part of the equation on how to find it. To get a feel for these questions, you should do as many as possible, if you can do 5 or 6 questions in this chapter, you should be fine. I also encourage you to solve the questions I've solved and see if you can do them alone, and if you get stuck, look at the video and go through it step by step. :)

[@thenellecornejo3724]

bravo!!

[@QuestionSolutions]

:)

[@olivermilner6396]

thanks

[@QuestionSolutions]

You're very welcome!

[@Ooba101]

Please try to make your class more lively

[@QuestionSolutions]

Not sure I understand what you're referring to.

[@ericpijano9002]

legend !

[@QuestionSolutions]

Thanks!

[@adamgadowski2881]

Wow, managed to explain what 2 weeks of classes explained in 5 minutes...Just shows how educational institutions have to justify their asking cost lol

[@QuestionSolutions]

I am glad this video was helpful to you! Best wishes with your studies :)

[@episteme666]

fucking a++ thanks

[@QuestionSolutions]

You're very welcome!