I am an engineer having 7 years of work experience in Structural field and today's the day I actually got to know what Moment of Inertia literally means.

@gilbertwamichwe1190

2 жыл бұрын

Welcome to the club

@adityagopinathan7791

2 жыл бұрын

Then what your where doing last 7 years without knowing how to balance the weight equally

@hrn8935

2 жыл бұрын

hol up

@YashodhanReddy

2 жыл бұрын

This is the reason our country is still "developing" These "dumb" people get jobs but don't know what they are dealing with..

@AdiPrimandaGinting

2 жыл бұрын

I know you mean it as something funny, but it is actually something being dangerously very ironic

Dave you just saved a man's CGPA

My professor has a Ph.D., but still, he didn't explain like this. He has 3 hours per week to teach.

@Born2Losenot2win

4 жыл бұрын

Hahaha same, welcome to the bigboys study hall

@mrpee2482

3 жыл бұрын

Okay ... So what ?

@Born2Losenot2win

3 жыл бұрын

MR Pee they are not meeting up with the standards even though they are getting payed by the standards, Basically the tutors on KZread deserve more than this and people who don’t do their job right don’t

@mrpee2482

3 жыл бұрын

@@Born2Losenot2win Okay

@bradvincent2586

3 жыл бұрын

@@mrpee2482 so it is absurdly pathetic that countless college professors are incapable of communicating basic principles in their field. Maybe 10% of my professors have been reasonably good

"If you don't know Calculus that would just look like witchcraft to you." I don't know why anyone would need a better reason to listen to these lectures. I laughed audibly enough for my neighbors to be concerned about my well-being. 10/10 would play on loop.

@rockyk6805

5 жыл бұрын

ahhahahahhah damn ur comment made me laugh a little too hard too

@nrgaming5849

3 жыл бұрын

Trevor loop means

@thetaiman5351

3 жыл бұрын

Had the same reaction and went to look through the comments to feel validated. now I am.

Excellent explanation. Thanks Gratitude from India :)

This is really useful, thanks! I was having a hard time understanding what exactly this was, then someone in upper year physics recommended this. Also, thanks for having closed captioning. I'm watching this on a library computer, and you can't easily get volume with that.

Thank you!!!! , khan academy has always been a life saver for me.

I like the way u teach! Clarified all my questions!! thanks :)

Very well explained! Thank you so much.

u just made my life 10times easier. i wish u were my professor in physics

I saw this video, and when I saw the collection of point masses, I said "Hey! This is just a Riemann sum," I can figure by just integrating all the "point masses" together. I was able to verify the equation of I for a sphere this way.

This helps so much. My teacher & book have been throwing different values of inertia around with zero explanation or what the heck the significance of a point mass is. While I still need some more work with it, this has cleared up so much of the mystery as to why 1/2, 1/3, 1/12 and so on.

Great explanation to understand.... thank you... hope to get more...

thank you my ap physics teacher is useless

@Nik-wo7hk

7 жыл бұрын

vmar same my teacher cant solve some of the easy problems

@ilmihaqim3186

5 жыл бұрын

well, my teacher is smart genius, the problem is he thinks everyone in class is a genius. SO, we can't catch up to his pace...

@sophiem7770

5 жыл бұрын

ilmi haqim abdul nasir lord I know the feeling- everyone in my class failed a test and he said Aw Damn Sucks To Suck and moved onto the next unit.

@user-fp5xz9mo3p

5 жыл бұрын

2 years later this video saves another student's life :)

@chansam4917

4 жыл бұрын

Well, my Math teacher used 3 months to teach all the thing that we are supposed to learn in this whole year, its like one chapter one lesson. And everyone failed the exam beside those insanely smart students. Than my Math teacher be like, I know you guys got this, all of you are smart, just pay more attention so you can pass. -_-

Thank you so very much. Ur teaching method is so dynamic and clear. Please don't stop uploading. 🙏🙏 Great video

this saved my life, ty

Excellent video, very good explanation. I have a question: what are the differences between the MIM and the Volume Moment of Inertia?

I'm quitting uni and just watching your videos now man. You cover this in no time but I'm sitting in 3 hour lectures? 🙄. Thank you!!

I am about to literally drop out of my college and major in interpretive dancing or something IDK.

Very helpful. Thank you.

Thanks that was very helpfull !

It's been a great help to study kinetics.

Great explanation! And I'm actually happy that you didn't do the calculus, so i can do it myself...

I am preparing for indian embassy examination from you channel😃😃 I appreciate your help. Thank you very much.😃😃

Nice explanation, thanks alot

This is really amazing

Grateful explanation

Moment of inertia for a solid beam and hollow beam please!! There is nothing about this that is very helpful on youtube! Thanks..though i have a wee test on this on Monday

Bro this is really helpful, thank you

Thank you!!!

omg brilliant!!!!!

great content, thanks alot

THANK YOU

Would be nice if you back up your lectures with calculations when you say inertia becomes 1/3 or 1/12 ..

Thank you very much

You don't know what have you uploaded my dear you are God of physics for me from now❤❤❤❤❤❤❤❤❤❤❤❤❤❤

thank you so much

thank you .....what is the program you are using?

Thanx sir

Thanks

thanks david

You just saved my career! Thank you!

@cornationboot8690

Жыл бұрын

@@huzaifaabedeen6509 nah just a student

I can't believe I' saying this, but could you point me in the direction of the calculus for this? Great video.

Very helpful explanation and example. Great work!

I would like to make a device to measure the moment of inertia of a bat or tennis racquet in an axis 10cm from the end of the handle. Can anyone help me? If necessary we can use arduino as devices to measure acceleration and angles. Thanks

well done

Think you

In this video they discuss about Mass moment of inertia, but didn't mention that. It should be mentioned that mass moment of inertia and area moment of inertia are different.

tq

Thank you❤❤❤❤ so much ❤❤❤

Thank-you

what if the center of the mass is on the center of the rotation axis?should we take r =0

what is that app? please

What about the second moment of inertia for deflecting a beam?

@carultch

2 жыл бұрын

It is a misnomered term, that has nothing to do with inertia. A better name for it is "second moment of area". It is a concept that is analogous to the moment of inertia, except you replace differential mass in the integral, with differential area. It is a property that indicates the geometric stiffness of a cross section to support a bending load.

Freshman in college trying to take physics- if you take the integral of the general equation of inertia, i could swear that you get I=(1/3)*mL^3 and when changing the axis of the rod, you should be able to use the same integrated formula but just divide L by the farthest points if the farthest points are equal on both ends

@groyt541

6 жыл бұрын

You have to divide the mass by L in order to get that fraction of mass in each little slice you're adding up

Please dont stop making these awesome videos !!! = ]

@walidzein1

7 жыл бұрын

i have a test on monday and i really need help ,do u have old physics test about the momentum angular momentum thank u

How moment of inertia of axial fan can be calculated

We are not dumb teacher's teaching makes us to feel that we are dumb

what exactly are we taking the intergal of ?

Sir, moment of inertia for a disc or hollow cylinder is 1/2 mr^ but whole mass of the cylinder is distributed at a same distance that is r so why it is 1/2 mr^ not MR squr

What is inertia telling us. I have to find inertia in a wood beam and I end up with 1230 in cubed. What does that mean. That 1230 cubed of the wood beam is the minimum for it not to be overturned? but at what force?

@carultch

2 жыл бұрын

Which "moment of inertia" are you talking about, because the term is used for two unrelated concepts? Moment of inertia as discussed in this video has the units kilograms-meter^2. The other kind of "moment of inertia" that should really be called "second moment of area" has the units meters^4 (or other distance units). Moment of inertia in this context, refers to the mass moment of inertia, which is a body's resistance to a change in state of rotational motion, that when multiplied by angular velocity gives angular momentum. It is a property of mass, shape, and distribution of mass. The other concept is the "area moment of inertia" or "second moment of area", which has *nothing to do with inertia*. This is purely a geometric property of a cross sectional shape, that indicates a structural shape's geometric stiffness against bending. The product of the second moment of area and Young's modulus, indicates how stiff a beam cross section is, against bending. This combination of factors relates bending moment to curvature of the beam. The reason it is called "area moment of inertia", despite having nothing to do with inertia, is that it has a lot of properties in common with the way we define mass moment of inertia. The essential difference is that we integrate relative to an infinitesimal area element dA, instead of relative to an infinitesimal mass element dm.

Sir can you please explain me ,how moment of inertia of circular section of diameter D is {(πD^4)/64}

@ahusain03

3 жыл бұрын

Actually in this video they discuss about Mass moment of inertia , {(pi.D^4)/64} is area moment of inertia.

@carultch

2 жыл бұрын

That is a different kind of "moment of inertia", that really has *nothing to do with inertia*. A better name for it is "second moment of area". It is called "moment of inertia" because it has a lot of properties in common with mass moment of inertia, but the essential difference is that dm is replaced with dA. In other words, instead of using a differential mass element in the integral, we use a differential area element. A better name for it that is also used, is "second moment of area". An application of the second moment of area, is as a geometric measure of the stiffness of a beam cross section. This term, along with Young's Modulus, gives us the beam stiffness term.

At first it seemed counterintuitive given torque/moment increases with distance, but imagine being spun on ice skates holding an object close to you or farther away.

I am guessing that for the moment of Inertia for the cylinder you should have to take the integral of m*r² for dm. This should be 1/2m²r², why is the mass not to the second in your video?

why is the distance squared?

But sir a point mass never rotates. Then how can we say that this point mass is rotating?

what sofrtware and device do u use to make your vidz

Just” learn calculus “ he says it so easily

why is I proportional to square of radius??

@carultch

2 жыл бұрын

Because mass that is farther away from the axis of rotation contributes to its angular momentum in two separate factors. Angular momentum is r cross (m*v), where r is the distance from the axis of rotation. For a rigid body, the tangential velocity is proportional to radius as well, via the angular velocity. Both of these factors together, mean that the radius is squared in the moment of inertia definition.

one question, you keep saying "if you do that integral", but what integral? i would actually know how to solve cause in my physics exam i dont have acess to any paper saying what the moment of inertia is for which case :/

4:31 4:33 for

STEM PA MGA TNGAA AHAHHAHAHAH

I suggest you learn calculus

isn't this supposed to be the other way? mass away from centre will make easier movement. for example we can close/open a door easily if force is applied away from the hinges

@khaledyasser8293

5 жыл бұрын

Imagine trying to swing around a jug of milk tied to the end of a 10m string vs trying to rotate it when it's in your hands (both cases you're the axis of rotation)

@kkikkodan

5 жыл бұрын

No . That's a completely different concept

7 people who disliked are people who are the living testament of “madness”

Awesome educational video and an even better joke... "If you don't know Calculus that would just look like witchcraft to you." hahaha

اووووف يلهندسة😫

So what are the calculus topics you're required to cover in order to fully understand this lesson ?

@yogeshthakur6477

6 жыл бұрын

Bleeding Knife

@hrn8935

2 жыл бұрын

You need to know the basics of differential and integeral calculus

came here for the calculations of moment of inertia, disapointed!

Please add Bangla subtitles

6:00 reducing radius by swinging a bat from the fat end? No. Tha reduces mass. Radius stays the same. Are we nuts here?

@nikhila6536

6 жыл бұрын

The place where we hold is where the axis is located...now think ....

Poor explanation 😏

Thanks

How moment of inertia of axial fan can be calculated