30.2 Cross Product

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  • Опубліковано 18 гру 2024

КОМЕНТАРІ • 15

  • @pchebbi
    @pchebbi 4 роки тому +9

    Crisp, precise and crystal clear explanation. Great animation! Thank you!

  • @borissimovic441
    @borissimovic441 7 місяців тому +1

    Can someone please explain how can the length of a vector (cross product) which is a “1D line” be equal to the area which is 2D this is somehow confusing to me?

  • @brenmclean
    @brenmclean 4 роки тому +2

    Great video. Helpful definition of CP.
    PS. We have finally moved away from the blackboard! Well done ;-)

  • @truth30
    @truth30 2 роки тому

    Great. Asinteta&bsinteta

  • @rvoros
    @rvoros 3 роки тому +1

    wow, he had to show right hand with left hand because video is flipped
    quite tricky maneuver when explaining right hand rule :)

  • @daudkharal1328
    @daudkharal1328 3 роки тому +1

    I don't get it. Is this intended for high school or college?
    I mean there's no intuitional and logical basis to the concept. Also, if it's a college course, what's the need when you have uploaded Walter Levin's lectures?

  • @EJ-lz6nc
    @EJ-lz6nc 3 роки тому

    Thnanks a a lot, Pr

  • @chestno-hw6eo
    @chestno-hw6eo 3 роки тому

    Sir,why we use sin theta in vector product

    • @aditya_saha
      @aditya_saha 3 роки тому

      to get the perpendicular height. area of //gm is twice the area of the triangle

    • @chestno-hw6eo
      @chestno-hw6eo 3 роки тому

      @@aditya_saha thankyou bro

    • @ArchismanBhowalHere
      @ArchismanBhowalHere 2 роки тому

      Can u tell me why cross product is the area of the parallelogram? What does the area signify?

  • @s_s_m_hz
    @s_s_m_hz 3 роки тому

    perfect

  • @mohammedshalabi4191
    @mohammedshalabi4191 2 роки тому

    Hi sir. I just want to ask a question. Why is the height equals to b×sin(angle) not b×a. In another way why is the area of parallelogram doesn't equal to a×b

    • @alfianmuhammad1335
      @alfianmuhammad1335 2 роки тому +1

      it came back to how we calculate the area of a parallelogram. The area is the horizontal component of it times the vertical component. B is the horizontal component, but A is not the vertical component. To find the vertical component, we use trigonometry thus sin came to existence.

  • @John-wx3zn
    @John-wx3zn 3 роки тому

    You taught WRONG! Their is no such thing as the left hand rule. If you do a cross b the orthogonal vector is always pointing up.