D’Alembert’s Principle of Virtual Work | Active Forces & Workless Constraint Forces | Lecture 18

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  • Опубликовано: 12 дек 2024

Комментарии • 16

  • @naderzamani5752
    @naderzamani5752 День назад

    Wonderful lectures. Thank you.

  • @mrwayofwarrior7853
    @mrwayofwarrior7853 Год назад +1

    Great virtual work deserves a great virtual like.

  • @fcvgarcia
    @fcvgarcia Год назад

    Thanks for sharing, Dr. Shane. What a great explanation!!!

  • @abdullahsonde6296
    @abdullahsonde6296 Год назад +1

    Hello professor, can u please let me known which book are you referring?

    • @ProfessorRoss
      @ProfessorRoss  Год назад +1

      ► Textbook:
      Engineering Dynamics: A Comprehensive Introduction
      by N. Jeremy Kasdin and Derek A. Paley
      press.princeton.edu/books/hardcover/9780691135373/engineering-dynamics
      (from the video description)

    • @abdullahsonde6296
      @abdullahsonde6296 Год назад

      @@ProfessorRoss thanks alot professor ❤️

  • @sudipsarkar3172
    @sudipsarkar3172 2 года назад +1

    I have a question...is sliding friction a constraint force?

    • @ProfessorRoss
      @ProfessorRoss  2 года назад

      No. It would show up as a generalized force Q_i. I discuss friction in this video ruclips.net/video/HdnXZJy7caI/видео.html

  • @hdheuejhzbsnnaj
    @hdheuejhzbsnnaj 2 года назад

    You will have many views soon.

  • @dataar7441
    @dataar7441 3 года назад

    How did we find d v/ dt

    • @ProfessorRoss
      @ProfessorRoss  3 года назад

      What part of the lecture specifically are you asking about?

    • @dataar7441
      @dataar7441 3 года назад +1

      @@ProfessorRoss 59:00

    • @ProfessorRoss
      @ProfessorRoss  3 года назад

      It was derived in an earlier lecture, here ruclips.net/video/rl5Eutcypkw/видео.html

  • @johnniefujita
    @johnniefujita 3 года назад +1

    goldstein right?!

    • @ProfessorRoss
      @ProfessorRoss  3 года назад

      I learned from Goldstein as a physics major, but I now teach from Kasdin and Paley: press.princeton.edu/books/hardcover/9780691135373/engineering-dynamics

  • @abcdef2069
    @abcdef2069 Год назад

    D’Alembert principle is a principle to waste of your brain energy for years with a fancy delta notation to something so obvious, why would i even mathematically care the possibility of the motion going through a blocking wall, since it is blocked, lets just move to the unblocked way. for a circular motion, if the string is a constraint for the centripetal force, the string will exert a micro tug towards it, this micro tug produces a centrifugal force that is inertial force, some might say this force is a fictitious, an imaginary or an rotational coor force, but i would never call it fictitious or imaginary which is a big mistake and misleading. i would call it a non inertial or a rotational or an inertial force.
    F = Ffixed + Ffictitious is misleading.
    but it should be called F = Ffixed + Frot or F = Ffixed + Fnon-inertial