Statics Example: 3D Particle Equilibrium 2

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  • Опубликовано: 29 окт 2024

Комментарии • 35

  • @littletwerpy
    @littletwerpy 8 лет назад +7

    Great last minute help for a static exam. Really the same as 2D with the whole extra layer of third dimension. Easy to overthink

  • @tarekelashmawy1072
    @tarekelashmawy1072 2 года назад

    Thank You! I'm a student in cairo university faculty of engineering and it's a rotted place that has crazy dense rooms (200-300 students) with unhelpful professors making very difficult exams. I don't recommend it for anyone

  • @matchillyt
    @matchillyt 4 года назад +16

    Why did you divide DA by 4.5 and DC by 3.5? What would you divide DB with?

    • @hizamshahrusmi
      @hizamshahrusmi 3 года назад +7

      Uda and Udc are the unit vectors. so 4.5 and 3.5 are both magnitude of position vectors Rda and Rdc.
      sqrt of 3^2 + 1.5^2 + 3^2 = 4.5 and sqrt of 1.5^2 + 1^2 + 3^2 = 3.5. Hope it helps.

    • @hizamshahrusmi
      @hizamshahrusmi 3 года назад

      and for DB you can do the same steps and it will give 1. so it is just Fdb because it lies on y-axis

    • @matteovinci83
      @matteovinci83 3 года назад

      @@hizamshahrusmi still not making sense here.
      for Rda why is there two 3^2 ?
      it is 3 up and 1.5 to the left of D origin point, but then where does the other 3 come from?

    • @hizamshahrusmi
      @hizamshahrusmi 3 года назад

      @@matteovinci83 A(4.5, 0, 3) and D(1.5,1.5,0). Rda is the difference A-D (head - tail) , so (4.5-1.5, 0-1.5, 3-0) then u will get Rda is (3,-1.5,3), hope it helps.

  • @Impedancenetwork
    @Impedancenetwork 7 лет назад

    Finally I found a worked out solution to a problem similar to the one I needed to solve. I'm an electrical engineering student in a Vector Analysis class where they gave one of these equilibrium problems. I haven't had physic in years so I can't exactly remember how to solve these static problems. Thanks for posting. I'm so glad EEs don't have to take statics. I hate this shit! Give me an electrical circuit any day!

  • @randyusmc
    @randyusmc 8 лет назад +5

    slow down
    But i think ive finally figured out this coordinate system stuff...thanks

  • @Ijee12
    @Ijee12 8 месяцев назад

    Please can you explain or show how you substituted the equations to get the final results of FDA Fdc?
    Thank you

  • @andrewquackenbush229
    @andrewquackenbush229 8 месяцев назад

    Where did you get the 4.5? That would be the length of DA. How did you find that?

  • @PeterWu777
    @PeterWu777 7 лет назад

    because uDB was therefore unit vector abbreviated to -j. its a cleaned up version to reader's benefit, he did mentioned it as he sums them up.

  • @ttchip8464
    @ttchip8464 3 года назад

    You really helped me in my Math project for my final year of high school. Thank you a lot, I needed this information, but could not find it easily.

  • @1mz0qpal
    @1mz0qpal 8 лет назад +15

    you really should have done the last steps to show the whole process from start to finish

    • @bearsj3
      @bearsj3 8 лет назад

      the Ez equation you can solve for the unknowns. with the Ex equation you solve for DC in terms of DA. then you plug that value into the Ez equation. there fore you can solve for what DA is from the Z equation. Then you plug that back into the Ex equation and solve for DC, then you can solve for the last unknown.

    • @calebereid
      @calebereid 4 года назад

      Yes, agreed

  • @paularojas9852
    @paularojas9852 6 лет назад

    THANK YOU! You saved my day with this exercise. Thanks!

  • @chimie_1891
    @chimie_1891 8 лет назад +14

    i only got here for the algebra part, still didn't got it hahah

  • @wansegamat3064
    @wansegamat3064 6 лет назад +2

    How to solve equation? Using matrix?

  • @RealMadrid-qe7mz
    @RealMadrid-qe7mz 8 лет назад

    all i am given in the problem is two angles and one force, i have been working on it for like 2 hours

  • @chend7948
    @chend7948 9 лет назад +5

    where is the force of BD

    • @Googlename699
      @Googlename699 8 лет назад

      +Chen D
      at ( Sum Fy=0 ) and (sum Fz=) there are three forces have been affected on the mass

  • @pronyCJ
    @pronyCJ 7 лет назад

    DA is 4.5i

  • @xs2278
    @xs2278 9 лет назад +1

    yeah where is it?

    • @Googlename699
      @Googlename699 8 лет назад

      +alhammam alsindi
      at ( Sum Fy=0 ) and (sum Fz=) there are three forces have been affected on the mass

  • @baihaqiedanuputra7366
    @baihaqiedanuputra7366 4 года назад

    I really aint to understand how to get the vector Fda and Fdc ? But anyone may be to help me ?

  • @reyrey389
    @reyrey389 8 лет назад

    Excellent

  • @benjamincalloway
    @benjamincalloway 5 лет назад +1

    W H A T ' S I N T H E B U C K E T ?

  • @carriecarrie7866
    @carriecarrie7866 7 лет назад +1

    Why did you calculated force which emerged from bucket 20lb. This is mass so you need to multiply by 9.81 right?

  • @midnightson787
    @midnightson787 6 лет назад +4

    terrible video!!! why the rush???

  • @muhammadhazamuddin2619
    @muhammadhazamuddin2619 8 лет назад

    really helpful