Inertia - Basic Introduction, Torque, Angular Acceleration, Newton's Second Law, Rotational Motion

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This video tutorial provides a basic introduction into inertia. Inertia is the property of an object to resist changes in its state of motion. According to Newton's First Law of motion, objects at rest tend to stay at rest and objects in motion tend to stay in motion unless acted on by a net external force. This video relates newton's second law of translational motion which is force equals mass times acceleration with newton's second law of rotational motion which is torque equals inertia times angular acceleration. This video provides the formula for rotational inertia of a hoop and a disk. The rotational inertia of an object depends not only on mass but the way that mass is distributed around a central axis of rotation. If the mass is distributed away from the central axis of rotation, the inertia of the object increases and there is more resistance to rotation. The general equation for the moment of inertia of a point in space is I=MR^2.
Intro to Rotational Motion:
• Rotational Motion Phys...
Angular Velocity:
• Angular Velocity Physi...
Angular Acceleration:
• Angular Acceleration P...
Rotational Kinematics:
• Rotational Kinematics ...
Intro to Torque:
• Torque, Basic Introduc...
________________________________
Parallel Axis Theorem:
• Parallel Axis Theorem ...
Rotational Dynamics:
• Rotational Dynamics - ...
Rotational Kinetic Energy:
• Rotational Kinetic Ene...
Rotational Power, Work, & Energy:
• Rotational Power, Work...
Work Done By a Constant Torque:
• Work Done By a Constan...
Angular Momentum & Torque:
• Angular Momentum - Bas...
_________________________________
What Is Angular Momentum?
• What Is Angular Momentum?
Angular Momentum Problems:
• Angular Momentum Physi...
Angular Impulse:
• Angular Impulse
Rotational Motion - Review:
• Torque, Moment of Iner...
Full-Length Videos and Worksheets:
/ collections
Physics PDF Worksheets:
www.video-tutor.net/physics-b...

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26 окт 2017

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Комментарии : 243

@TheOrganicChemistryTutor Год назад

Physics PDF Worksheets: www.video-tutor.net/physics-basic-introduction.html Full-Length Videos & Exams: www.patreon.com/MathScienceTutor/collections Next Video: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-JrkimXqnCLw.html

@angelinebantillo3128 5 лет назад

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.

@kasiecochran2262 4 года назад

same here dude.

@chocolate_chipp_00 3 года назад

You’re gonna make it! You’re on your way.

@engfani 2 года назад

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.

@joshuacajamarca3268 2 года назад

@@engfani Also a mech engineer major

@engfani 2 года назад

@@joshuacajamarca3268 Yep, sometimes we need to get back to those basics to deeply understand the Advanced topics.

@The053199 2 года назад

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.

@Hakkkkk 3 месяца назад

Thanks for help me, i'm doing phy 1 here, it already start to be magical 🙃

@byronkenoly 5 лет назад

Not all heroes wear capes

@mr.conductor7625 5 лет назад

Some wear thongs.

@user-rq1ic2bz6n 4 года назад

You wouldnt know, hes behind the screen. He might be flying right now

@btorresgabriel9-f614 3 года назад

I've seen this comment from a Bob Ross video right?

@DonSimone1996 3 года назад

Not all heroes have a good mic

@carolynliu1839 3 года назад

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@LL-kn1de 6 лет назад

I can't stress enough how much I appreciated your video. Thank you!

@filmcale 2 года назад

Fantastic explanation of Inertia. I have been struggling with this concept until I found your concise video. Thank you!

@querrythis Год назад

Man, clear as day. When you can grasp the concept, the rest of the lesson becomes a satisfying curiosity. Thanks a lot.

@greatalbama2978 Год назад

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"

@vineethbalachandran2911 4 года назад

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

@joshcanfield1733 3 года назад

you are the best professor ive had since starting college, thank you

@JG-kn5lq 4 года назад

Imagine this man was your teacher, bro you would pass everything

@traj250 4 года назад

5.0 GPA

@triunnbjorn3610 4 года назад

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.

@DonSimone1996 3 года назад

You'd pass the shit out of it

@brucejohnson5786 2 года назад

he is our teacher wtf u talking about

@tlili3990 2 года назад

@@brucejohnson5786 they probs mean irl teacher in school

@user-kp4wn3hy6w 4 года назад

SIR. MARRY ME. I'M LITERALLY NOT EVEN JOKING AT THIS POINT WHAT A LE G EN D

@raven1922 10 месяцев назад

I call dibs

@yishakephrem3182 5 лет назад

Hope you don’t stop making these videos b/c it is making physics more simple to understand

@jordang9052 4 года назад

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@patrikkovacs8396 4 года назад

and leff

@tomatrix7525 3 года назад

And wuhtah for water

@eldi 3 года назад

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@BurgoYT 2 года назад

Objecc at ress, but we love this man

@abrd2171 5 лет назад

thank you for making videos I am starting to understand physics because of you!!

@reagamarialuz6944 5 лет назад

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..😊😊

@nohaaz.9985 3 года назад

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@bilalsadallah8169 3 года назад

You re a legend of youtube thanks!

@jingyiwang5113 Год назад

This is really helpful! Thank you so much for your help!

@p_2923 2 года назад

this is a crazy good video to draw connections between translational and rotational motion

@imeldalopez5167 4 года назад

Awesome explanations :) Thanks

@FORESTER2011 3 года назад

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

@jonathansanchez8802 4 года назад

Thank you for the videos!

@agentprismarine2778 4 года назад

this is genuinely excellent explanation of a torque

@looneybugsybug5333 6 лет назад

Keep up the work

@karinaburgess3989 Год назад

best channel. thank you!!!!

@sabahatmajid9599 4 года назад

This video helps a lot.

@Zamil_Ali Год назад

Thanks this was really helpfull

@NathaliaK.QuinteroGomez 6 лет назад

thanks for the video!!!! it was really helpful for me. Gracias de nuevo :D!!!!

@vv-ky4bi 6 лет назад

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@faris.abuali Год назад

Thanks! 🧡🧡

@tarunicab7376 Год назад

Next level bro... awesome explain nation

@David-hu2zx 6 лет назад

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@Tommy-fj4oq 4 года назад

This was very helpful, no one could objeck.

@8-hbergertheresamalinao322 2 года назад

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@airilolilover142 4 года назад

As an architect I appreciate every video you make. Why do professors suck at explaining things as easy as you ?

@marioionion2 2 года назад

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

@eygs493 2 года назад

you IQ?

@yusuf_7927 2 года назад

The great professor I have ever seen, I have learned from him, thank you so much and love you.

@reuelrcrorychetty1608 5 лет назад

hi there! just wanted to say thank you for your work...absolutely brilliant!..thank you soo much..really make physics fun and interesting

@morrissabi5170 Год назад

Continue to teach us thanks 🙏

@fidasleem7818 3 года назад

Excellent teachers not only like but hundreds hearts ❤️❤️

@ipekkiraz4527 2 года назад

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.

@ClarissaRose 2 года назад

Thank you soooooo much!!!!!!

@mesekermkebede3369 3 года назад

am happy for this lesson

@adityabhat9172 5 лет назад

Great job

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@My_Precious_Fun_Life Год назад

You’re a life saver

@heinhtet2234 4 года назад

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@gideonbennett4187 5 месяцев назад

Thank you for this information sir 💛 ;) !

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@oguzgonul2584 2 года назад

thanks!

@adirs99 4 года назад

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@jaisaketh1937 4 года назад

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@aarushsrubiksworld4906 4 года назад

THANK YOU :)

@jerryjones6978 6 лет назад

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@fritz4468 Год назад

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@wildmangreen5259 4 года назад

wow. what a find this guys is.

@minesiperera1342 3 года назад

Thanks alot.................

@ahmedmohamedali7304 2 года назад

ty... a lot

@amanor_yo 3 года назад

I got it now...thanks man

@therichbenbo Год назад

This the best definition and understanding of the concept. I’ve watched almost 5 videos this one is the best !

@4kstreamer44 4 года назад

Looking everywhere for this mr^2. Where do you go when you want to know what something "really" means?

@ramalingeswararaobhavaraju5813 4 года назад

Good morning teacher sir, thank you so much sir.

@mazentagel-din5646 Год назад

Thanks

@crosscountryrunner8241 3 года назад

Ap physics really taking a toll on me, these videos are the only reason I have a high grade in that class!!

@wojtekklos7857 3 года назад

Ready for Wednesday?

@crosscountryrunner8241 3 года назад

@@wojtekklos7857 my school took it last week, failed that shit

@FredHandle1 3 года назад

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.

@vnana2991 3 года назад

Neat!

@pranjalverma3501 6 лет назад

nice video

@numbynumb 2 года назад

Is the 1/2 an approximation? Wouldn't the fraction depend on the relative thickness of the disk?

@Freddy18w 2 года назад

so bike tires with spokes are harder to rotate than a solid wheel if the mass & radius are the same?

@satyampandey2222 5 лет назад

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

@brendanllarenas6383 2 года назад

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❤

@brendanllarenas6383 2 года назад

I mean it does'nt have all of the information sorry for the typo

@MsLinaPeanut 2 года назад

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!!!

@BrianBoruish 3 года назад

So is that angular acceleration rate in revolutions per second or radians per second?

@hashiro961 4 года назад

nice

@zahraazibara270 4 года назад

Thank god u exist

@wwathan 5 месяцев назад

life saver

@scorpiongamer70.69 Месяц назад

Ma keep it professional

@alexchang24 6 лет назад

im in love with you

@animationspace8550 5 лет назад

*romantic music plays*

@user-rq1ic2bz6n 4 года назад

Youre about to feel friction

@obviskaelyns7163 3 года назад

@@animationspace8550 They meant his teaching not getting romantic 😂

@vog- 3 года назад

You can feel the tension

@Organicchemistrytutor2015 3 года назад

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@jasdeepsinghjasdeepsingh5282 5 лет назад

Good

@kriaz6844 4 года назад

i like it

@potatoheaded1648 3 года назад

Legend

@yangjinleylazhang720 4 года назад

i finally understand

@mickytube1935 3 года назад

I just touch the like button before I start the video

@unknown-bx8my Год назад

how can i calculate the inertia of a polygon?

@syedfarazali295 2 года назад

PLEASE call it "ROTATIONAL INERTIA" or "MOMENT OF INERTIA" or "MASS MOMENT OF INERTIA" and not "Inertia". Inertia of both the objects is same because they have same mass and will posses the same tendency to resist any change in their state of motion and cannot be calculated using a formula.

@irvinglopes2489 4 года назад

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??

@jabby1492 3 года назад

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-SL1neIyoGmA.html

@carultch 2 года назад

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.

@ContaminatedWorld 3 года назад

He got a sweet voice 👌

@user-zy8qo8xz9o 10 месяцев назад

4:50 if the total masses are equal then shouldnt they both have equal interia

@ikkeennigij121 3 года назад

I'm wondering, where does this constant come from when calculating inertia (e.g.: I=1Mr² for the hoop and I=1/2Mr² for the solid? is it something that's defined for certain shapes, if so what about custom shapes?

@ikkeennigij121 3 года назад

nvm, quick google search: basically for complex shapes you'd have to divide your shape into the available ones and then calculate them seperately to get the total inertia.

@nhuthanhnguyen7452 2 года назад

@@ikkeennigij121 thanks for the info

@sayserloks 3 года назад

I think its about time we order you a cape whether you wear one or not.

@gooddeedsleadto7499 Год назад

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

@AlienLivesMatter 3 года назад

Next topic: Practical applications of inertia amplification as a margin gain experiment on bicycle acceleration and velocity

@vinayakhuracan5182 3 года назад

If everyone teaches this way then we have lot more scientists

@BrianBoruish 3 года назад

Also, why is there a time component in some moments of inertia (lb*in*sec^2) and not in others (kg*m^2)?

@carultch 2 года назад

The reason lb-in-sec^2 has seconds in its units, has to do with correcting the pound unit to stop being a force unit, and be a mass unit instead. It is to get rid of the seconds that are in the denominator of the pound unit.