Problem-21 | Reviving mechanics for JEE main

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  • Опубликовано: 6 май 2021

Комментарии • 8

  • @weldermartins7264
    @weldermartins7264 3 года назад +1

    great job 🔥🔥, i'm brazilian, and i love your videos,
    then make a video solving ITA problems (brazil)

    • @10xphysics
      @10xphysics  3 года назад

      Do you understand my language (Hindi) !!
      Anyway, thankyou 😂

    • @weldermartins7264
      @weldermartins7264 3 года назад +1

      ​@@10xphysics the math is the linguage haha 💚💪

    • @10xphysics
      @10xphysics  3 года назад

      👍😄

  • @vigneshwaranrm6277
    @vigneshwaranrm6277 3 года назад +1

    Moment of inertia should be about the point of rotation right? Why you have taken moment of inertia about center?

    • @10xphysics
      @10xphysics  3 года назад

      Because the disc is rotating about its own axis passing through its centre of mass

    • @vigneshwaranrm6277
      @vigneshwaranrm6277 3 года назад +1

      @@10xphysics thanks for replying ,in which case we will be taking moment of inertia about the point of rolling?

    • @10xphysics
      @10xphysics  3 года назад +1

      Imagine a situation where a wheel is about to go from one stair to next stair _ in this case wheel will rotate about the edge of the upper stair and torque about this contact point is also zero so we can conserve angular momentum about this point.