29.4 Parallel Axis Theorem

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  • čas přidán 1. 06. 2017
  • MIT 8.01 Classical Mechanics, Fall 2016
    View the complete course: ocw.mit.edu/8-01F16
    Instructor: Dr. Peter Dourmashkin
    License: Creative Commons BY-NC-SA
    More information at ocw.mit.edu/terms
    More courses at ocw.mit.edu

Komentáře • 66

  • @fushimushy
    @fushimushy Před 2 lety +128

    When this guy wrote in the air I got so hyped

    • @devilzhellfire5952
      @devilzhellfire5952 Před rokem +2

      I think it’s a glass

    • @noname-li5tl
      @noname-li5tl Před 8 měsíci +16

      ​@@devilzhellfire5952No he's actually writing in air, incredible technology

  • @callapederson3601
    @callapederson3601 Před 2 lety +37

    so much better explained than in my physics textbook and physics prof! Thank you!!

  • @josefita1567
    @josefita1567 Před 2 lety +12

    Thanks professor, this video helped me a lot

  • @STKeTcH
    @STKeTcH Před 2 lety +1

    I love this man so much!

  • @shambhu5995
    @shambhu5995 Před 5 lety +3

    Thank you...it's absolutely useful

  • @mayahawthorne4788
    @mayahawthorne4788 Před 4 lety +2

    Amazing. Thank you!

  • @hardik05jain
    @hardik05jain Před rokem +1

    Great explanation

  • @tsgoten
    @tsgoten Před 6 lety +32

    That looks dope

  • @numerousoriabure459
    @numerousoriabure459 Před rokem +1

    So explicit ❣️

  • @datpham31415
    @datpham31415 Před 5 lety +1

    Thank you so much. It's help

  • @andreykalinchuk9432
    @andreykalinchuk9432 Před 5 lety +1

    Love it. Thx!

  • @chiranshuarya5693
    @chiranshuarya5693 Před 3 lety +2

    Thank you sir

  • @CorgiTheCorgi
    @CorgiTheCorgi Před 4 lety +14

    Better explanation than what I had in Berkeley lol

  • @mattheoswho1010
    @mattheoswho1010 Před 6 lety +46

    How is he writing like that? Amazing.! Like he can mirror the letters without thinking about it

    • @REL1C
      @REL1C Před 5 lety +4

      it's reversed

    • @ArthurMorganFTW_RDR
      @ArthurMorganFTW_RDR Před 4 lety +3

      Actually its the glass itself. not showing you the inverted image...….

    • @FaultedPath
      @FaultedPath Před 3 lety +2

      @@ArthurMorganFTW_RDR but he is behind the glass....

    • @samuelbrice3699
      @samuelbrice3699 Před 3 lety +20

      @@FaultedPath He's writing normally, and the video is inverted horizontally.

    • @FA-sy7ew
      @FA-sy7ew Před 3 lety +20

      its one of the requirements when youre in MIT

  • @sanjitraman
    @sanjitraman Před 2 měsíci

    Nice!

  • @Rebel8MAC
    @Rebel8MAC Před 5 lety +6

    What is the justification for having x squared in the integral? Are you essentially making an "educated guess" that the moment of inertia is going to be mL^2 times some fraction?

    • @InternetWarriorQwer
      @InternetWarriorQwer Před 2 lety

      He just input distance into the I formula in integral form, review your notes homie

  • @jaiswal1972
    @jaiswal1972 Před 5 lety +26

    very impressive skills of writing that way, you have sir. Hats Off to you

  • @hananahmed1765
    @hananahmed1765 Před 3 lety

    Thank u

  • @nathanhansen4195
    @nathanhansen4195 Před 4 lety +3

    Very helpful, thank you!

  • @diondredunigan5282
    @diondredunigan5282 Před 3 lety +7

    Just saved me. AP physics is a pain lol

    • @dhruvgupta9530
      @dhruvgupta9530 Před 2 lety +1

      ya it is. But if you try to do JEE Physics (Indian Engineering entrance level Physics) You'll say that Man, this AP Physics is a cakewalk in front of JEE Physics

  • @john150108
    @john150108 Před 4 lety +4

    Does this theorem still apply if the distribution of matter in the body is not uniform?

    • @vishwasshankar3929
      @vishwasshankar3929 Před 4 lety +6

      No

    • @mach2570
      @mach2570 Před 3 lety +1

      It does, as nowhere in the derivation do we assume that. Only a general particle is taken.

    • @nabintimalsina5628
      @nabintimalsina5628 Před 2 lety +4

      @@vishwasshankar3929 it works provided the mass density function

    • @zzzzzzzjsjyue2175
      @zzzzzzzjsjyue2175 Před 2 lety +1

      You have to integrate with the density function

  • @j27t
    @j27t Před 2 lety +1

    I watched twice.. first time was out of admiration of how easily he’s writing backwards

  • @tokerrrre
    @tokerrrre Před 7 měsíci

    Hello from Hacettepe University

  • @assassinblade7412
    @assassinblade7412 Před 11 měsíci

    Thank you sir... It was very helpful to me

  • @akashbhalerao3494
    @akashbhalerao3494 Před 3 lety +1

    This is only mathematics
    Not anyone teaches physics
    Exept my great teacher ag sir and his teacher Richard feynman

  • @avneeshchauhan9257
    @avneeshchauhan9257 Před 6 lety +1

    how do get md^2 in this equation

    • @Rebel8MAC
      @Rebel8MAC Před 5 lety

      Me too, I've watched the video like 20 times trying to understand where that extra x in x^2. It's important because that's what brings him to the right answer but I can't see the justification for why he put it into the integral to begin with.

    • @suvadeeppanthy8801
      @suvadeeppanthy8801 Před 2 lety +2

      The unit of Moment of inertia is kg.m^2. so it is mass x distance^2

  • @studynight5414
    @studynight5414 Před rokem

    DUDEEEE 😳 how can you write things on air WTFFF

  • @joebidenisapedophile
    @joebidenisapedophile Před 4 lety

    What are you writing on

    • @mitocw
      @mitocw  Před 4 lety +5

      He's writing on glass. See lightboard.info to see how it was done.

    • @ruthwossen943
      @ruthwossen943 Před 4 lety +1

      it is a learning glass.

  • @nachiketmagesh5938
    @nachiketmagesh5938 Před 3 měsíci

    how are these videos done? does he actually write backwards lol

    • @mitocw
      @mitocw  Před 3 měsíci

      lightboard.info to see how it was done.

    • @nachiketmagesh5938
      @nachiketmagesh5938 Před 2 měsíci

      @@mitocw That's cool! Thank you for letting me know.

  • @FieryFlare
    @FieryFlare Před 4 lety +3

    Crazy thing is this is a pretty basic result in rotational Dynamics taught to Indian kids in 11th grade who study for competitive exams like JEE Mains and JEE advanced

    • @blinkerhawk
      @blinkerhawk Před 3 lety +1

      really that gives me a boost to keep practcin

    • @samuelbrice3699
      @samuelbrice3699 Před 3 lety +2

      What's your point? This isn't just taught to Indian kids.

    • @dhruvgupta9530
      @dhruvgupta9530 Před 2 lety +1

      @@samuelbrice3699 He means that these things form the basic level of Indian Engg entrance exam JEE, which indeed is too much high level in front of this.

  • @admel8933
    @admel8933 Před 2 lety

    every vid does such a bad job explaining the d distance