Introduction to Lagrangian Mechanics

Comments · 331

• YI

  @yiwang2537 · 3 years ago

  I just realized how important is this when I saw the "LAGRANGIAN" is so big. !

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• RI

  @richardrigling4906 · 5 years ago

  Nice reintroduction to the Lagrangian - it's been 50 years since I played with this.

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• FR

  @fredg8328 · 5 years ago

  In french "kinetic energy" is "énergie cinétique". There is no "T" in that. But it could come from the word "travail" which means "work" in french.

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• RO

  @RodrigodaMotta · 5 years ago

  In my first year in physics 1 course, my teacher tried to give an overview on Lagrangian Mechanics, but he used a lot math tools that i didn't know at the time, for exemple a Taylor Series with two variables. So, I don't need to say that i didn't get anything that he said. But your video can give a very good overview of Lagrangian for a first year!. Good Job! I want a Series!

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• LO

  @lookthesky9632 · 4 years ago

  After watching you video, I felt Lagrangian mechanics is a very smart way to do it. This feeling is like there is a house, front door is closed. Backdoor is opened but people don't know there has a back door in this house. When try to open the door and into the house, Newtonian mechanics try very hard use force to breaching the door, and Lagrangian mechanics just into the house from back door.

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• TO

  @tornjak096 · 5 years ago (edited)

  should the y_double_dot on <a href="https://www.youtube.com/watch?v=8UtnDaGHpq0&amp;t=637">10:37</a> be minus g because it is acting downwards or I am missing something

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• DA

  @davicruzpestana7329 · 5 years ago

  Really cool! I&apos;m planning on getting a Physics degree and this just keeps me motivated.

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• RI

  @richardrigling4906 · 5 years ago

  At time stamp <a href="https://www.youtube.com/watch?v=8UtnDaGHpq0&amp;t=630">10:30</a>, shouldn&apos;t it be mg = -my dot?

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• NA

  @nameislokey · 5 years ago

  Your teaching levels of physics is very good and it makes me to listen to your teaching

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• KY

  @KynesisCoding · 3 months ago

  Thank you for creating this in-depth explanation of Lagrangian mechanics. I&apos;m currently building a particle-based system for simulating all types of particles and your video is a valued source of knowledge!

• GA

  @GalileanInvariance · 5 years ago

  Nice introduction to LM ... An important point which was overlooked is the way in which LM can incorporate generalized forces (which would appear as extra terms in the E-L equation). Such forces must be taken into account when some physical forces acting on the system are not conservative (and therefore not expressible via potential energy). Such forces also are especially convenient/useful for assessing relevant constraint forces.

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• DR

  @droher1344 · 5 years ago

  This is amazing man. I&apos;ve always had a lot of problems with parametrization, and although that was not the core of the video you made me see it in a different way. Keep it up

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