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It's my first year in engineering, I'm starting to doubt myself 'cause I really can't follow whatever my professors are teaching. Now I'm on break and I've decided to relearn everything... from the basics. This is a good way to start. I sincerely thank you.
I'm going through the same thing, 1st year Mechanical Engineering here, can you tell me about what you did to improve the basics, and how it affected your Engineering studies,Thanks.
If it helps anyone for physics 1, Always think of things in terms of direction - think of all 4 directions for every problem -choose what direction you want as positive -Keep basic ideas committed to memory like Momentum conservation, kinetic energy, potential energy etc, simply conservation formulas is more than enough dont overthink it -learn what a derivative and integral really is, this will help you understand whats really happening and youll tie things together more deeply. -remember that trigonometry can be used too, its a tool not baggage and definitely learn to derive the 4 basic kinematic equations that is the quickest way to learning linear motion.
I think that you describe the things in a simple way so that easy to understand , which I think is better understanding than any of professors’ theories and books
Bro i just got in grade 8 and my modules have all of the information it just gives what is the meaning of the laws of motions but not how to sovle the question or answer it you are a life saver and you explain it properly it is easy to undertand thank you bro❤
I think you made a mistake there, in circular motion we talk about moment of inertia, which is different than just inertia Because if you compare the inertia of the disc and the ring it'll be same for both of them since they have the same mass, but the moment of inertia will be different for both of them
How come I can’t understand this from my professor? And even when I read the book but totally makes sense with you??! You’re awesome thank you so much!!!
So my question is why is rotational inertia's coefficients 1/2,1, and 2/5. Are they just established coefficients? Will any rotating object without mass on the axis of rotation be 1 or MR^2, and will every object with mass on the axis of rotation be 1/2mr^2??
It comes from Calculus, and accounting for the distribution of mass. You can look up the derivations for common shapes of moment of inertia, like a solid uniform cylinder with a coefficient of 1/2, a solid uniform sphere with a coefficient of 2/5, and a thin uniform hoop with a coefficient of unity. The thin uniform hoop is a special case with the coefficient equal to unity, because all of the mass is concentrated at one radius from the axis of rotation.
Which of the two will accelerate faster? T = I x alpha For solid disk I is smaller than hoop Means lower resistance to motion than hoop So Solid disk will roll down faster
Why doesn't the thickness of the thin hoop change the inertia? If you think about it, if the thickness of the hoop was .99999R compared to the solid disk, the formulas will state that the inertia of the hoop is twice that of the disk, which doesn't really make sense since they're very similar to each other. The only difference is that the hoop has a very small hole at the center.
It comes from Calculus. You determine an infinitesimal mass element dm, and its corresponding radius. Then you determine what dm is, relative to the definition of the original shape. Integrate radius^2 with dm as a differential, and you calculate the total moment of inertia of the shape.
![Inertia & Newton's First Law of Motion - [1-5-4]](/img/n.gif)
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It's my first year in engineering, I'm starting to doubt myself 'cause I really can't follow whatever my professors are teaching. Now I'm on break and I've decided to relearn everything... from the basics. This is a good way to start. I sincerely thank you.
same here dude.
You’re gonna make it! You’re on your way.
I'm going through the same thing, 1st year Mechanical Engineering here, can you tell me about what you did to improve the basics, and how it affected your Engineering studies,Thanks.
@@MechEngMahmoud Also a mech engineer major
@@joshuacajamarca3268 Yep, sometimes we need to get back to those basics to deeply understand the Advanced topics.
If it helps anyone for physics 1, Always think of things in terms of direction
- think of all 4 directions for every problem
-choose what direction you want as positive
-Keep basic ideas committed to memory like Momentum conservation, kinetic energy, potential energy etc, simply conservation formulas is more than enough dont overthink it
-learn what a derivative and integral really is, this will help you understand whats really happening and youll tie things together more deeply.
-remember that trigonometry can be used too, its a tool not baggage
and definitely learn to derive the 4 basic kinematic equations that is the quickest way to learning linear motion.
Thanks for help me, i'm doing phy 1 here, it already start to be magical 🙃
this guy is actually carrying me so hard, i havent understood this for weeks, and as usual i am saved by an 11 minute video. thank you so much
Man, clear as day. When you can grasp the concept, the rest of the lesson becomes a satisfying curiosity. Thanks a lot.
this sounds like it could be written by a philosopher "when you can grasp the concept, the rest of the lesson becomes a satisfying curiosity"
I can't stress enough how much I appreciated your video. Thank you!
Ur a legit god. I didn't understand any of this stuff in my lecture, but you taught me this in like 20 mins. Thanks
Fantastic explanation of Inertia. I have been struggling with this concept until I found your concise video. Thank you!
SIR. MARRY ME. I'M LITERALLY NOT EVEN JOKING AT THIS POINT WHAT A LE G EN D
I call dibs
you are the best professor ive had since starting college, thank you
Imagine this man was your teacher, bro you would pass everything
5.0 GPA
My Intro to Statistics teacher was like this man. I passed with a 99.7. I'd kill to have her as my teacher in everything.
You'd pass the shit out of it
he is our teacher wtf u talking about
@@brucejohnson5786 they probs mean irl teacher in school
Not all heroes wear capes
Some wear thongs.
You wouldnt know, hes behind the screen. He might be flying right now
I've seen this comment from a Bob Ross video right?
Not all heroes have a good mic
@@btorresgabriel9-f614 t x d t z t z xu xu
Hope you don’t stop making these videos b/c it is making physics more simple to understand
no one has saved my math, physics, and chemistry education as this kind sir has. the only reason I'm surviving university !!
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As an architect I appreciate every video you make. Why do professors suck at explaining things as easy as you ?
I heard that teachers before to go teaching in schools, they practice some years "How to teach" but I think some professors miss that tutorial
you IQ?
thank you for making videos I am starting to understand physics because of you!!
Once again, literal lifesaver. You'll get to 10 million subs in no time, you deserve it!!!
I think that you describe the things in a simple way so that easy to understand , which I think is better understanding than any of professors’ theories and books
You re a legend of youtube thanks!
Ap physics really taking a toll on me, these videos are the only reason I have a high grade in that class!!
Ready for Wednesday?
@@wojtek_klos my school took it last week, failed that shit
this is a crazy good video to draw connections between translational and rotational motion
I am studying in Turkey and I am in 11th grade. We learn about this in physics. This video helped me a lot in my exam. Thank you very much.
All these videos help every student each year, and your views will be increasing every year 🥰🥰🥰
Your amazing i can easily understand the topics were discussing in our lessons in physics..you are really a life saver,.thank you very much..😊😊
The great professor I have ever seen, I have learned from him, thank you so much and love you.
Thanks this was really helpfull
Excellent teachers not only like but hundreds hearts
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I don't understand why it is 1/2 for the circle..
Can't even begin to express how valuable you are bro
hi there! just wanted to say thank you for your work...absolutely brilliant!..thank you soo much..really make physics fun and interesting
this is why I love this man sm
Bro i just got in grade 8 and my modules have all of the information it just gives what is the meaning of the laws of motions but not how to sovle the question or answer it you are a life saver and you explain it properly it is easy to undertand thank you bro❤
I mean it does'nt have all of the information sorry for the typo
this is genuinely excellent explanation of a torque
This was very helpful, no one could objeck.
This the best definition and understanding of the concept. I’ve watched almost 5 videos this one is the best !
Thank you very much you really helped alot ❤
My clueless ass watching this hours before the Exams😅😅😅😂😂
Keep up the work
Awesome explanations :) Thanks
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I think you made a mistake there, in circular motion we talk about moment of inertia, which is different than just inertia Because if you compare the inertia of the disc and the ring it'll be same for both of them since they have the same mass, but the moment of inertia will be different for both of them
am happy for this lesson
Next level bro... awesome explain nation
I just touch the like button before I start the video
This guy is a legend
you just blew my mind
can you upload a video on quantum mechanics and quantum theory
This is really helpful! Thank you so much for your help!
thanks!
This video helps a lot.
How come I can’t understand this from my professor? And even when I read the book but totally makes sense with you??! You’re awesome thank you so much!!!
Continue to teach us thanks 🙏
Good morning teacher sir, thank you so much sir.
I think Im finishing my engineering degree with this channel.
You’re a life saver
Thank you for the videos!
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Thank you for this information sir 💛 ;) !
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Ma keep it professional
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Nathalia Quintero hyyy
Thanks alot.................
So my question is why is rotational inertia's coefficients 1/2,1, and 2/5. Are they just established coefficients? Will any rotating object without mass on the axis of rotation be 1 or MR^2, and will every object with mass on the axis of rotation be 1/2mr^2??
th-cam.com/video/SL1neIyoGmA/w-d-xo.html
It comes from Calculus, and accounting for the distribution of mass. You can look up the derivations for common shapes of moment of inertia, like a solid uniform cylinder with a coefficient of 1/2, a solid uniform sphere with a coefficient of 2/5, and a thin uniform hoop with a coefficient of unity. The thin uniform hoop is a special case with the coefficient equal to unity, because all of the mass is concentrated at one radius from the axis of rotation.
im in love with you
*romantic music plays*
Youre about to feel friction
@@animationspace8550 They meant his teaching not getting romantic 😂
You can feel the tension
0:29 you can hear sirens in the background
I got it now...thanks man
thanks for saving us :)
If everyone teaches this way then we have lot more scientists
Great job
Thank god u exist
He got a sweet voice 👌
ty... a lot
Thank you so much
I think its about time we order you a cape whether you wear one or not.
The only way to pass exams🙌
Looking everywhere for this mr^2. Where do you go when you want to know what something "really" means?
rip backward button everytime my brain unfocus for a second
Great video, better than my actual professors.
03:30 Rotational motion
thank you so much omfg
THANK YOU :)
nice
Thanks
thanks dude
Got a question pls
If a mass were to continue to accelerate after a Force is disconnected, wouldn't that be a violation of the conservation of Energy.
do you take donations?
Donate to his patreon or go fund me
8:58 guys in the comments , a quick question -what if we have a hollow thin looped sphere??
My final exam is in 20 minutes and this is new to me. Okay for me. Please.
Is the 1/2 an approximation? Wouldn't the fraction depend on the relative thickness of the disk?
4:50 if the total masses are equal then shouldnt they both have equal interia
Next topic: Practical applications of inertia amplification as a margin gain experiment on bicycle acceleration and velocity
Which of the two will accelerate faster?
T = I x alpha
For solid disk
I is smaller than hoop
Means lower resistance to motion than hoop
So
Solid disk will roll down faster
Why doesn't the thickness of the thin hoop change the inertia? If you think about it, if the thickness of the hoop was .99999R compared to the solid disk, the formulas will state that the inertia of the hoop is twice that of the disk, which doesn't really make sense since they're very similar to each other. The only difference is that the hoop has a very small hole at the center.
nice video
Why 1/2 and not 1/4 or 1/6 or 1/8? Mass is distributed all over.
It comes from Calculus. You determine an infinitesimal mass element dm, and its corresponding radius. Then you determine what dm is, relative to the definition of the original shape. Integrate radius^2 with dm as a differential, and you calculate the total moment of inertia of the shape.
very nice!!!! you forgot m/s^2 after a
so bike tires with spokes are harder to rotate than a solid wheel if the mass & radius are the same?