Lagrangian Mechanics and the Double Pendulum

  Рет қаралды 40,721

Rhett Allain

Rhett Allain

6 жыл бұрын

I'll admit it - the double pendulum is pretty tough. I'm not going to solve the whole thing for you, but here is how you start to solve it.
If you want a full solution, here is a site with an explanation scienceworld.wolfram.com/physi...

Пікірлер: 25
@JeremyJohnson413
@JeremyJohnson413 6 жыл бұрын
Do you do any videos on thermodynamics or fluid mechanics?
@007acreed
@007acreed 6 жыл бұрын
Do more videos on Classical Mechanics
@mostafaahmadi4998
@mostafaahmadi4998 4 жыл бұрын
Thanks for the video. The link is dead. Could you please upload the correct link?
@rahmawatiyusri3171
@rahmawatiyusri3171 5 жыл бұрын
i'm so sorry. in (y dot) i think you must put positive there. because the derrivative from cos is (-sin) then before you put negative in y. so in y dot the negative can be replaced.
@compphysgeek
@compphysgeek 5 жыл бұрын
also in that term the theta_2 inside the sin doesn't have a dot. You missed that one @Rahmawati Yusri ;)
@MEBGUDIMALLAMSUSHMANTHSAI
@MEBGUDIMALLAMSUSHMANTHSAI 3 жыл бұрын
In T(Kinetic energy) why rotational kinetic energy is not considered (1/2 I w^2 terms)?
@firojtandan2776
@firojtandan2776 3 жыл бұрын
Sir what will happen when we replace strings by rod
@frederikscience
@frederikscience 6 жыл бұрын
Why is the x coordinate equal to the length x Sin (theta) and not Cos(theta)?
@connornelson280
@connornelson280 6 жыл бұрын
Because the pendulum hangs in the negative y direction of the x-y plane. Length of pendulum = L (Hypotenuse) X component of pendulum (Opposite). sin(theta) = X/L
@arjunpatel068
@arjunpatel068 4 жыл бұрын
why do we not consider the rotational KE of each bob?
@AJAdkins99
@AJAdkins99 4 жыл бұрын
Because they do not rotate. They are fixed to the lengths
@akshaysekar355
@akshaysekar355 3 жыл бұрын
I started with Lagrangian mechanics today and its so cool i Love this
@Youshisu
@Youshisu 3 жыл бұрын
wow, I enjoyed watching this :D
@topquark27
@topquark27 3 жыл бұрын
Pretty good , thanks C:
@user-fu8td6gd6w
@user-fu8td6gd6w 2 ай бұрын
معحترامي لحضرتك بس اني افتهم علة د. يونس لا انتَ ولا امثالك يفهموني وطلاب دفعتي يعرفون شجاي احجي
@kko_2oo4
@kko_2oo4 2 ай бұрын
اي نعم😂😂😂😂😂
@user-uy6kc3qd1v
@user-uy6kc3qd1v 2 ай бұрын
اي بالله العظيم 😊❤
@user-fu8td6gd6w
@user-fu8td6gd6w 2 ай бұрын
@@kko_2oo4 حبيبي انتَ
@user-fu8td6gd6w
@user-fu8td6gd6w 2 ай бұрын
@@user-uy6kc3qd1v تاجراسي فطم
@kko_2oo4
@kko_2oo4 2 ай бұрын
🤍🤍​@@user-fu8td6gd6w
@Atchu007
@Atchu007 2 жыл бұрын
Sir lm from india your very good teaching
@christianavila5267
@christianavila5267 3 жыл бұрын
Good afternoon Rhett, I have an exercise similar to yours, I have some doubts, could you help me? If you have any email available, thank you.
@speedspeed121
@speedspeed121 3 жыл бұрын
Your y dot 2 is wrong. Negatives
@janbormans3913
@janbormans3913 4 жыл бұрын
Solid start of the video. Then it gets weird 🤔
@spencergee6948
@spencergee6948 2 жыл бұрын
Didn't define x,y coords
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