Introduction to Lagrangian Mechanics

[josefrancis]

GOOD! Indians are arriving at the scene - explaining the concepts . I passed B.Sc in 1977 and am still reading popular science and Feynman Lectures. Usually I see Western teachers in You Tube. Nice to see an Indian.

[shalakhars]

Nice one... good info..short n sweet..keep adding more of these!!

[DjJamiz]

This was actually pretty fun to watch and learn, thanks!

[rj_mp]

This was great, I wish my mechanics lecturer was half as good at explaining difficult concepts.

[drshriprakashdubey]

very good explanation great, clear concept of classical mechanics

[AdityaKumar-ijok]

This was a more fun way to learn about Lagrangians than other videos

[suvashshrestha]

Thank you bro, , you explanation was mind blowing, good to you next Einstein
From Nepal ♥️, , ,

[subratamitra]

Best video on Lagrangian, I am really thankful

[chiragraju]

I am familiar with the Hamiltonian where KE + PE of a system is considered (which forms the basis for the Schrodinger Wave equation). This video helped me gain a little insight into the Lagrangian.

[paichethan]

Cool. I liked it. Please add some more videos .. Upto hamiltonian

[maunil]

Nice effort. But you must understand that action principle hold whether system is conservative or not, we can also say that whether we can write L=T-V or not but A=integral(Ldt) is always true. Lagrangian is not defined as L=T-V, but for conservative systems it takes that form. Also you must understand that 2nd law of Newton is a fundamental law of nature( in classical domain) and so it is not derivable from any other more fundamental non-relativistic classical law. We may derive Newton's 2nd law using Hamiltonian or Lagrangian mechanics but they are all equivalent principle. So what we are doing is not actually deriving Newton's 2nd law, but we are just verifying it using Hamilton's principle. Hamilton's principle is more general in mathematical sense. But physically both Newtonian and Hamiltonian mechanics are equivalent beacuse both of them at the end do the same physical prediction. Note, both of them are philosophically different because in NLM we have a local principle or differential principle. But in least Action principle we have Global priinciple or integral principle.

[BeactiveWithBhattii]

you described it very well man :like: and summed up in 3 mints instead of one or half an hour.

[rohitkantipudi]

FYI: Quite redundant till about 30 / 35 secs... Its the same (simpler) stuff as the last lecture. Feel free to forward.

[vandanagahlawat]

Please can you explain the hamiltonian principle

[indersingh-tuez]

Plz don't stop add some more video

[debunkthis]

Does quantum mechanics not follow this principle?

[keithedwards]

You should consider making more videos like this. Improve the sound level consistency, but otherwise you're a good presenter.

[sumanmandal]

yes i got it..great... baki to classical mechanics ko mathematics bana k chod dia ha... keep uploading more vdo plz..

[absurdsisyphus]

Hey buddy.
I am a student of class 12th who have a same aspiration like you. I am quite interested in math and physics, but at a same time i am very very poor at organic and Inorganic chemistry.
Btw
I do wanna be a theoretical physicist and wanna join foreign universities for my further studies.
So my question is, how can i join Oxford University like you?
And
Plz make a video to explain double slit experiment through least action i.e. FEYNMANL INTEGRAL PATH

[rohitsanjay]

This was really nice and well made :) I was studying the Lagrangian under multivariable calc and came across your video in the recommended. What do you do Tejas?