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31.1 Relationship between Torque and Angular Acceleration

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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 • 14

  • @agh1750
    @agh1750 Před 3 lety +4

    The way he says "we only want the z component of the torque " is confusing because it gives the impression that there are other components when in reality torque is defined as being perpendicular to the axis of rotation. He should have instead said "we know that the torque vector is directed perpendicularly to the axis of rotation, therefore to compute the torque we can ignore the k hat component of the force when taking the cross product with r because the cross product of r with the k hat component of the force is not perpendicular to the axis of rotation.

  • @fancymachines6554
    @fancymachines6554 Před 2 lety +1

    I've been trying to understand (not just grasp the formula) how torque affects acceleration for several weeks now. Thank you for this derivation.

  • @xinyuxie5128
    @xinyuxie5128 Před 5 lety

    That is amazing, excellent school

  • @BoZhaoengineering
    @BoZhaoengineering Před 4 lety +1

    It seems the polor coordinate i, theta and k prevail everything in rotation.

  • @uzmajilani5771
    @uzmajilani5771 Před 6 lety

    Nice work

  • @anengineer8647
    @anengineer8647 Před 4 lety

    Hi can you please explain me difference between kinetic energy =1/2 Iw2 and angular torque t=I.alpha As for both unit is same NM.
    I WANT TO CALCULATE MOTOR POWER BY CONSIDERING TORQUE BUT STUCK IN ABOVE DOUBT PLEASE CLERIFY

    • @Andres186000
      @Andres186000 Před 3 lety

      Torque times angular velocity should give you power. I would go through the equations again

  • @surajkumardwivedi7139
    @surajkumardwivedi7139 Před 2 lety

    is he writing the mirror image of what I am seeing?

  • @happybro2802
    @happybro2802 Před rokem

    Ayeèee, how is he writng like this 🙆

  • @richis2fast4u
    @richis2fast4u Před 5 lety +2

    How's he writing backwards? What's happening? lol

  • @suryachokkar6478
    @suryachokkar6478 Před 6 lety +2

    I'm 14 years old and this was very nice and helpful, thanks so much