Hello CHULBULON..!!! Anubhav Sir has a Special Message for you❤️ ruclips.net/user/shortsEptbie4HDwE?si=qyhzTgO5tl9tNT4m We are thrilled that you like our content and way of teaching 😊. Please fill out the form so that we can help you better. The counsellor will contact you soon. forms.gle/SG2tZik76RfhNAxk6 Regards, Team TOP
Like the same way the heart of John's brown mother got thrilled after she rceived the messgw of his son's coming . But after seeing him she was shocked she was unable tore ignise him . His face was blown away. He could hardly stand with the help of emtal brace attached to his spinal cord . John brown breaks his mthers magainataikne hi considers wat to be somting gloeuorus . John brown exeains as soon as he gone there he comoekteley tirgotbthe lruldoe of war. Even the emenmey looked like him . And as soon as the teh relsistikn struck a huge canakn sturckbwith his fac e. Ackridng ti him soldiers are lien apwn gightinbfir saiatufying the intrsts of givg they are like an puppet in the play
Abe ch*tiye woh sphere ko touch karne ko nhi bola tha unhone. Baki thread toh touch kr he skta the aur unhone wahi kara. Khud nashe mai rehte hai aur gyan dene aajate hai chu*** log
"Conservation of angular momentum". It states that the total angular momentum of a rotating body is conserved in absence of torque(T=0). i.e., L=mvr=constant. Since the radius of the body decreased the linear velocity of the body increased.
Sahi to h There is no external torque, as the thread itself is the axis. Hence I¹w¹ = I²w² As the size of ball decreases, it's Moment of Inertia(I) decreases, and Omega (w) increases
Angular momentum conservation(Iw=constant ,when Fext=0)!!!!!!after he pulled the lower string ,the distance of the adjoining parts from COM reduced i.e. MI decreased, thus angular velocity increased in order to conserve the momentum.
@@bhaskar1157 Nahi woh galat ha, aisi nahi karte kyuki linear velocity constant nahi ha. When Net Torque = 0, Angular momentum is conserved, so when we decrease the radius, the Moment of Inertia increases thus the angular velocity decreases.
L = mvr For constant Angular Momentum (L) (means no torque is applied), tangential velocity (v) is inversely proportional to the radius (r). This is why you decreased the radius which led to an increase in tangential velocity.
@Anubhav Sir, your teaching technique, really mesmerize me. Still I learn and recall a lot of theories from your these videos. You are one of the best physics teacher till date I have seen.
Angular Momentum Conservation L = Moment of Inertia x Angular Velocity Mass gets concentrated near centre of mass, so moment of inertia decreases hence angular velocity increases
Angular Momentum of this system will remain conserve as we haven't applied any external torque. Since Iw= constant; radius of sphere gets decrease when we pull the rope and hence I reduce and w will increase.
Angular momentum= mass× velocity× radius. So angular momentum is directly proportional to radius and radius is inversely proportional to velocity, which means if you decrease the radius ,velocity automatically increases because mass is constant here. He just decreased the radius of whatever this thing is by pulling the thread and speeding it up
external torque about its axis is zero,hence angular momentum will be conserved,initial moment of inertia jyada but omega kam,nichle string ko kichne se moment of inertia kam hoga jisse omega badha ga bcoz angular momentum is const.
here radius from axis of rotation decreases so moment of inertia (I) also decreases as I = 2/5mr^2 now to conserve angular momentum omega should increase itself so rotation in sphere speed up
L=Iw According to conservation of angular momentum Angular velocity is inversely proportional to moment of inertia When he pulled the string downward it reduces moment inertia which causes to increase angular velocity
Uska chota krne se uska moment of inertia bad jata h or inertia badne se angular velocity km hoti h angular momentum ko conserved rakhne ke liye kyuki us ball per koi ext. Torque nhi lag rh h
Instead…the omega is increased because of angular momentum conservation as no external torque is applied to the system and IW=constant so as I(moment of inertia decreases….W (angular velocity) increases….
@@lakshmisinghal4816shi h lekin..... Torque external nhi hota puri body ka torque zero hoga because there is no perpendicular torque on system so torque of body is zero than angular momentum is conserved......
Angular velocitu is inversly propotional to the radius.... When radius is decrease by pulling the string below that toy the angular velocity increases becuse radius is decreased👍
As (inertia=mr^2) when we decrease radius inertia also decreases And by relation (angular momentum=inertia and angular velocity) when inertia decreases then angular velocity (w) increases to make eq constent.
angular momentum conservation, Iw = constant, on contraction, masses gathers closer to axis of rotation so I decreases so w increases meaning angular speed increases
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Its conservation of angular momentum Angular momentum =M Inertia × Angular Velocity And M inerta=mass×radius square When the thread is pulled the radius of varius masses decreases from the axis around which it rotates and hence the moment of inertia decreases now the system has to increase the angular velocity to conserve the momentum and thats why its speed increases
Apke jese sir agar har schools or cllg me ho to asani se ham india me education leval high kar sakte hai ...... apke jese teacher hajaro scientist bana sakte hai. 😇🤞
Angular momentum conservation L=Iw Since we pulled the thread the radius in which the mass was distributed decreased which ultimately decreased the moment of inertia (I) hence any external torque was not provided the angular momentum must be constant for that body so the angular velocity increases so as to keep the product (Iw) constant ... Mai itna bhi khass nhi......😅
As we know that moment of inertia and angular speed depends upon the distribution of mass as we can see that, initially the mass was distributed far from the axis of rotation and when the distribution of mass comes near to the axis , the moment of inertia decreases and the angular speed increases this is the law of conservation of angular momentum❤ Thanks✨
Conservation of angular momentum ... moment of inertia decreases when mass comes nearer to axis of rotation and for conservation of angular momentum angular velocity must be increase .i.e Iw=constant
😊😊Sir mene jese socha tha same wahi tarika aapne apnaya or mene ye har video me notice Kiya h jese mene socha tha wese hi aapne bataya यानी same thinking 🤔🤔🙏🏻🙏🏻🙏🏻
Conservation of angular momentum bc the moment of inertia decreased bc the radius of the shape thats close to a hollowsphere decreased so to conserve angular momentum rotational speed should increase
In the first Arrangement the masses are far away from it's axis of rotation, Compared to second arrangement Due to which the moment of inertia of the system is higher in first arrangement And less in second arrangement , As it is demonstrated in the video, he gave the angular velocity to the first arrangement and then shrink the volume of the first arrangement ( So that all the masses come closer and thus the distance from the rotation of axis decreases) so that the moment of inertia decreased therefore to conserve the angular momentum( Because there is no net external torque applied during the motion), omega increased
According to Law of Angular momentum conservation IW =constant I=mr² Sir n mass decrease kiya to overall I decrease hoga than angular speed will be increase hogi qki angular momentum is conserved
Angular momentum is equal to moment of inertia into angular velocity due conservation since the moment of inertia decreases angular velocity increases!!
Radius is inversely proportion to omega(w) (that is angular velocity) When you pull the rope its radius is decreased that's why the angular velocity is increased -----------IS IT COREECT----------
Angular momentum is given by L = I w Where I is moment of inertia and w is angular speed Since no external torque is acting on body it's angular momentum remians conserved Therefore as I decreases by reducing radius of ball w increases
Radius is inversely proportion to omega(w) (that is angular velocity) When you pull the rope its radius is decreased that's why the angular velocity is increased
Well I am a 10th grader and I just passed my ninth, according to me,as the momentum is the product of velocity and mass , and we know that any two quantities that are in product so they have inverse relation p,as you decreased its size , it's velocity automatically got a rise
In daily life situation: children in villages play with a thin thread one end tie a knot to index finger on left hand and the other end to the right index finger. the cap of bottles is holed at centre flatened and is placed at middle of thread(the thread passes through the hole) and the thread is rotated to 2-3 times a round and while they are rotating circularly the left hand is pulled to left direction and right hand to right then it rotates first enough(the speed is very fast it may cut a small pieces of plants) and won't stop until we stop pulling it 🙂
angular momentum =mvr where m is mass,v is velocity and r is radius of the body. Here mass and angular momentum is constant and thus v and r are inversely proportional. So if radius decreases velocity increases and vice versa. Here the velocity increases since radius of the sphere is decreased.
Momentum (P)=Mass(m)×Velocity(v) P=m×Radius(r)×Angular Velocity(ω) P=mrω So, to conserve the momentum of the body, that is to keep it constant, ω will increase if r decreases.
Smaller the size greater will be the angular speed as the radius decreases the velocity as we know V is equals to omega R and Omega is inversely proportional to R
Law of conservation of Angular momentum (I₁ω₁=I₂ω₂) Moment of inertia decrease ho jaega or angular velocity increase ho jaegi (moment of inertia isliye decrease ho jaega kyo ki radius of sphere decrease ho jaegi)
Hello CHULBULON..!!!
Anubhav Sir has a Special Message for you❤️
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Regards,
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😮😮
Sir what is your offline coaching fees
Like the same way the heart of John's brown mother got thrilled after she rceived the messgw of his son's coming . But after seeing him she was shocked she was unable tore ignise him . His face was blown away. He could hardly stand with the help of emtal brace attached to his spinal cord . John brown breaks his mthers magainataikne hi considers wat to be somting gloeuorus . John brown exeains as soon as he gone there he comoekteley tirgotbthe lruldoe of war. Even the emenmey looked like him . And as soon as the teh relsistikn struck a huge canakn sturckbwith his fac e. Ackridng ti him soldiers are lien apwn gightinbfir saiatufying the intrsts of givg they are like an puppet in the play
Angular momentum
Sir chulbulon ye hamara Nick name he kya😂
The main point is teacher touch karke hi speed increase kiye😂
Exactly mai bhi yhi soch rha tha😂
Wo inertia ka concept samjha rahe hai.(yeh class 11 rotational mechanics ka hissa hai aur bahut aasan hota hai.)
But sphere nahi 😂😂😂😂😂
@@narendraswami1633no he have not touch the sphere he had touch thread
Abe ch*tiye woh sphere ko touch karne ko nhi bola tha unhone. Baki thread toh touch kr he skta the aur unhone wahi kara. Khud nashe mai rehte hai aur gyan dene aajate hai chu*** log
"Conservation of angular momentum". It states that the total angular momentum of a rotating body is conserved in absence of torque(T=0). i.e., L=mvr=constant. Since the radius of the body decreased the linear velocity of the body increased.
Student be like - sir mujhe pata tha par mai kar deta tho apki video kaise banti😂😂
Yes😂
Haan bhai😂😂
😂😂😂😂
Scripted tha 😂
😂😂😂😂
the student is having same mindset that is of me😂😂
Same here 😂😂😂😂😂😂😂😂
Same here
Same
Meehh too 🥲
Law of conservation of angular momentum
Aba sala
Kuch b😂
torque net should be zero tb lagega conservation of angular momentum....concept sahi kro bhai apna
Sahi to h
There is no external torque, as the thread itself is the axis.
Hence I¹w¹ = I²w²
As the size of ball decreases, it's Moment of Inertia(I) decreases, and Omega (w) increases
@@titanicgamer6804Force due to weight and tension is passing through the axis of rotation hence torque = Fr
=F(0)
=0
Student ka tattoo bahut achchhha hai
aur students bhi 😅😊
@@Tanukashyap-sl5br student pe dil aagya kya.
Sayed apka Dil fisal gaya😂@@Tanukashyap-sl5br
@@Tanukashyap-sl5braccha you are in love this guy
The speed is constant but the angular velocity is increased as radius decreased to support the relation ( speed = Radius x angular vel)
For constant Torque, moment of inertia is inversely proportional to angular frequency. When rope was pulled, r decreased,I decreased and W increased
Angular momentum conservation(Iw=constant ,when Fext=0)!!!!!!after he pulled the lower string ,the distance of the adjoining parts from COM reduced i.e. MI decreased, thus angular velocity increased in order to conserve the momentum.
bro w = v/r lgale na direct
Yes correct...to conserve angular momentum... angular velocity increased due to decrease in MOI by reducing distance..
Yes correct, to conserve angular momentum... angular velocity increased in order to compensate for the decrease in MOI.
@@bhaskar1157so what is constant and varying in that?
All the 3 components are varying and we know only about r.
So can't tell anything about v and w
@@bhaskar1157 Nahi woh galat ha, aisi nahi karte kyuki linear velocity constant nahi ha.
When Net Torque = 0, Angular momentum is conserved, so when we decrease the radius, the Moment of Inertia increases thus the angular velocity decreases.
L = mvr
For constant Angular Momentum (L) (means no torque is applied), tangential velocity (v) is inversely proportional to the radius (r).
This is why you decreased the radius which led to an increase in tangential velocity.
Sir please physics ka concept bhi bata Diya Karo 🙏
I just want students to comment and try. Rest I will definitely upload the solutions in due course of time
@@Theory_of_Physics thankyou sir
Agular momentum is Vperpendicular/R
Value of are decreases so momentum increases
In this the MOI is decreased because of which the angular velocity is increased
@@bright_Vloger πDN/60
@Anubhav Sir, your teaching technique, really mesmerize me. Still I learn and recall a lot of theories from your these videos. You are one of the best physics teacher till date I have seen.
Bro entered 100% of brain💀
Sir aap bahut hi aachha science padhate hai❤❤❤❤❤
One more legend is coming out🔥🔥
Thanks for the kind words
The teacher needs whole india👍😊
Why does the students laugh looks like recorded?
Angular Momentum Conservation
L = Moment of Inertia x Angular Velocity
Mass gets concentrated near centre of mass, so moment of inertia decreases hence angular velocity increases
Angular Momentum of this system will remain conserve as we haven't applied any external torque. Since Iw= constant; radius of sphere gets decrease when we pull the rope and hence I reduce and w will increase.
As just a school student, I already figured out how to do that , ( never saw this phyics in my life) ... Proud of myself😂🎉
Angular momentum= mass× velocity× radius.
So angular momentum is directly proportional to radius and radius is inversely proportional to velocity, which means if you decrease the radius ,velocity automatically increases because mass is constant here. He just decreased the radius of whatever this thing is by pulling the thread and speeding it up
external torque about its axis is zero,hence angular momentum will be conserved,initial moment of inertia jyada but omega kam,nichle string ko kichne se moment of inertia kam hoga jisse omega badha ga bcoz angular momentum is const.
In every experiment
Student - general category
Anubhav sir - SC/ST category 💀💀💀💀💀
😂 op bhai
here radius from axis of rotation decreases so
moment of inertia (I) also decreases as I = 2/5mr^2 now to conserve angular momentum omega should increase itself so rotation in sphere speed up
Mein aapke lessons daily sunti hu toh mujhe pata tha aisa hi kuch hoga
Jo sir ko follow karte wo like pe click karo 👇👇
L= IW = constant, as we pull the thread down I( Moment of inertia) decrease so w (angular velocity ) increased.
समझाने का तरीका अत्यंत प्रभावित करता है
L=Iw
According to conservation of angular momentum Angular velocity is inversely proportional to moment of inertia When he pulled the string downward it reduces moment inertia which causes to increase angular velocity
Angular momentum increases with decrease in radius.😎
Uska chota krne se uska moment of inertia bad jata h or inertia badne se angular velocity km hoti h angular momentum ko conserved rakhne ke liye kyuki us ball per koi ext. Torque nhi lag rh h
V=rW ,so omega is inversely proportional to r, hence radius is decreased speed will increase.❤❤
Nope bro….velocity isn’t constant here so we cannot say that omega is inversely proportional to r…
Instead…the omega is increased because of angular momentum conservation as no external torque is applied to the system and IW=constant so as I(moment of inertia decreases….W (angular velocity) increases….
Aap Allen ma padhta ho kya??
@@lakshmisinghal4816shi h lekin..... Torque external nhi hota puri body ka torque zero hoga because there is no perpendicular torque on system so torque of body is zero than angular momentum is conserved......
@@aniketrana297 yess
Angular velocitu is inversly propotional to the radius.... When radius is decrease by pulling the string below that toy the angular velocity increases becuse radius is decreased👍
I am a commerce student but day by day my interest is increasing because of your concept ❤ what a brilliant sir!!
Even I am from commerce
As (inertia=mr^2) when we decrease radius inertia also decreases And by relation (angular momentum=inertia and angular velocity) when inertia decreases then angular velocity (w) increases to make eq constent.
Muze pata tha 😅 💯 kyuki me bachpan me dhaage wali chakari ghumata tha jitna dhaga khichu utni ghumti ti
angular momentum conservation, Iw = constant, on contraction, masses gathers closer to axis of rotation so I decreases so w increases meaning angular speed increases
Conservatuon of angular momentum jaha par (IW= constant he )to jab string khichnege tab moment of inertia dec hoga to angular speed inc hoga
❤❤❤❤❤❤❤❤❤❤❤❤
Your teaching way is unique and interesting.
Sir aap jo padhate ho uske full topic k vdo bhi upload kariye plsss ☺☺
We are happy that you want our full video lectures.
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Kindly be explaining the concept as some students end up not understanding the concept you are teaching in videos Sir
Its conservation of angular momentum
Angular momentum =M Inertia × Angular Velocity
And M inerta=mass×radius square
When the thread is pulled the radius of varius masses decreases from the axis around which it rotates and hence the moment of inertia decreases now the system has to increase the angular velocity to conserve the momentum and thats why its speed increases
Apke jese sir agar har schools or cllg me ho to asani se ham india me education leval high kar sakte hai ...... apke jese teacher hajaro scientist bana sakte hai. 😇🤞
Angular momentum conservation
L=Iw
Since we pulled the thread the radius in which the mass was distributed decreased which ultimately decreased the moment of inertia (I) hence any external torque was not provided the angular momentum must be constant for that body so the angular velocity increases so as to keep the product (Iw) constant
... Mai itna bhi khass nhi......😅
Mai toh ladka dekh kar aayi thi 😅😂😂
As we know that moment of inertia and angular speed depends upon the distribution of mass as we can see that, initially the mass was distributed far from the axis of rotation and when the distribution of mass comes near to the axis , the moment of inertia decreases and the angular speed increases this is the law of conservation of angular momentum❤
Thanks✨
Conservation of angular momentum
Conservation of angular momentum ...
moment of inertia decreases when mass comes nearer to axis of rotation and for conservation of angular momentum angular velocity must be increase .i.e Iw=constant
Angular velocity is inversely proportional to radius
😊😊Sir mene jese socha tha same wahi tarika aapne apnaya or mene ye har video me notice Kiya h jese mene socha tha wese hi aapne bataya यानी same thinking 🤔🤔🙏🏻🙏🏻🙏🏻
Angular momentum is Inversely proportion radius
Conservation of angular momentum bc the moment of inertia decreased bc the radius of the shape thats close to a hollowsphere decreased so to conserve angular momentum rotational speed should increase
In the first Arrangement the masses are far away from it's axis of rotation, Compared to second arrangement Due to which the moment of inertia of the system is higher in first arrangement And less in second arrangement , As it is demonstrated in the video, he gave the angular velocity to the first arrangement and then shrink the volume of the first arrangement ( So that all the masses come closer and thus the distance from the rotation of axis decreases) so that the moment of inertia decreased therefore to conserve the angular momentum( Because there is no net external torque applied during the motion), omega increased
Net torqie=0, therefore ang. Momentum is conserved, L=MRω², Mass is constant, on decreasing radius ang. velocity increases
According to Law of Angular momentum conservation
IW =constant
I=mr²
Sir n mass decrease kiya to overall I decrease hoga than angular speed will be increase hogi qki angular momentum is conserved
Angular momentum is equal to moment of inertia into angular velocity due conservation since the moment of inertia decreases angular velocity increases!!
Demonstration by a Hoberman sphere. What a simple beauty !!! ❤
Low of conservation of angular momentum, i1w1 = i2w2 inertia decreases so womega increses
Angular speed is inversely proportional to radius.
He reduces the radius by pulling the string as in the result the speed increases.
Radius is inversely proportion to omega(w) (that is angular velocity)
When you pull the rope its radius is decreased that's why the angular velocity is increased
-----------IS IT COREECT----------
V=rw now if v is costant then w inversely proportional to the angular velocity so if radius decreases then angular velocity increases.😊
Angular momentum is given by
L = I w
Where I is moment of inertia and w is angular speed
Since no external torque is acting on body it's angular momentum remians conserved
Therefore as I decreases by reducing radius of ball w increases
Radius is inversely proportion to omega(w) (that is angular velocity)
When you pull the rope its radius is decreased that's why the angular velocity is increased
Well I am a 10th grader and I just passed my ninth, according to me,as the momentum is the product of velocity and mass , and we know that any two quantities that are in product so they have inverse relation p,as you decreased its size , it's velocity automatically got a rise
Mass ≠ size my friend. This is relation of axial vectors. You'll learn about it in class 11.
Mass distribution distance about rotational axis decreases . therefore moment of inertia decreases .
Moment of inertia decreases and therefore angular velocity increases in order to conserve the angular momentum.
Conservation of angular momentum
R1>R2 then V2>V1
Conservation of angular momentum as net external torque is 0 and on pulling the string inertia decreases and thus angular speed increases
Kuchh Na Kuchh naya sikhane Ko Milta Hai Anubhav sar se❤❤❤
Those students don't like physics 😢
But after u these students fall in love with physics 😊😊😊
Charan sparash guru 😊😊
Prashn 1A ma 1 ma (i) ma juthno niyam ma
option A aavshe a+(b+c)=(a+b)+c 😊😊
Because omega is inversely proportional to moment of inertia . Aur sir aapne rope khich kr moment of inertia kam kr diya toh usse omega badh gya
Radius decreases moment of inertia also decreases aur angular velocity increases
Sigma student for not spoiling the video
Since radius is decreased i,e moi increase and ultimately angular acceleration increased and Omega will increase
In daily life situation: children in villages play with a thin thread one end tie a knot to index finger on left hand and the other end to the right index finger. the cap of bottles is holed at centre flatened and is placed at middle of thread(the thread passes through the hole) and the thread is rotated to 2-3 times a round and while they are rotating circularly the left hand is pulled to left direction and right hand to right then it rotates first enough(the speed is very fast it may cut a small pieces of plants) and won't stop until we stop pulling it 🙂
Acc. to Conservation of momentum
Moment of inertia is inversely proportional to angular velocity
Isko banaye keise ? Mind blowing ❤
angular momentum =mvr where m is mass,v is velocity and r is radius of the body. Here mass and angular momentum is constant and thus v and r are inversely proportional. So if radius decreases velocity increases and vice versa. Here the velocity increases since radius of the sphere is decreased.
Conservation of angular momentum. The moment of inertia decreases so the angular speed will increase.
Momentum (P)=Mass(m)×Velocity(v)
P=m×Radius(r)×Angular Velocity(ω)
P=mrω
So, to conserve the momentum of the body, that is to keep it constant, ω will increase if r decreases.
Smaller the size greater will be the angular speed as the radius decreases the velocity as we know V is equals to omega R and Omega is inversely proportional to R
Sir aap na kaha tha touch nahi Karna lakin ap na Dori ko touch Kiya who agree 💯
Amazing video,i have my exam tomorrow and this explanation really helped me,hopefully exam badia jaaega
Fantastic 😊😊
This teacher make the physics more interesting 🤔🤔😁😁
Sir, I think in it apply that, if we decrease moment of inertia so velocity of object automatically increases
Conservation of angular momentum. Moment of inertia decreases so angular velocity increases.
Very great good Nice Knowledge and Technology
Because of moment of inertia decreases then angular velocity increase
Conservation of angular momtum because Tork is zero so integration of constant is zero hence angular momentum=constant
Moment of interia decrsed,so angular velocity will increase dur to conservation of angular momentum
Conservation of angular momentum
Moment of inertia decreased so Angular velocity had to increase so that angular moment conserved
Law of conservation of Angular momentum (I₁ω₁=I₂ω₂)
Moment of inertia decrease ho jaega or angular velocity increase ho jaegi (moment of inertia isliye decrease ho jaega kyo ki radius of sphere decrease ho jaegi)
Radius is decrease moment of inertia is decreased IW=const so angular speed is increase
Law of conservation of angular momentum, moment of inertia decrease krna hai tb angular speed increase hogi
Angular momentum ke Karan...
Area decrease karne se speed increase ho jati hai....👍👍
Studies apart the student is toooo cute❤
Moment of inertia decrease when it bends and angular velocity increasea
When moment of inertia decreases the angular velocity increases
Box of vengence expendable ball
Conservation of angular momentum because moment of inertia decrease so angular velocity increase