Pendulum Motion
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- Опубліковано 9 вер 2010
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My physics teacher is extremely intelligent and good at her job, but it makes such a difference when someone is enthusiastic about what they teach. I'm not only learning from these videos but enjoying it as well. Thank you!
i don't understand anything and not even trying to learn physics but you're extremely fun to watch
Why are you yelling at me? I just wanted to learn about pendulum.
mescetacy 😂😂😂😂😂😂
Considering how ridiculously convoluted physics can look, yelling is often needed to get the point across.
😂😂😂😂😂😂😂😂😂😂😂😂 I'm done with humans
lol
Is it just me or is he not blinking?
He isn't .___.
Adem Penver Truuu
Thank you for your energy! Really got me focused. We need more physics teachers like this
Absolutely fantastic teacher!
Great verbal explanation/perspective of the mathematical concepts he's teaching!!
Thanks for great video!
12 years later, still helping people! Thank you!
By far my favorite Brightstorm dude. By far.
Thank you for the simple but very thorough explanation!
I've watched a few pendulum videos. I like this the best so far.
omgoodness you made my day. i wish more teachers were like you. actually, i wish more people in general were like you :P
THANK YOU. YOU ARE THE BEST.
You're an amazing and extremely engaging teacher, thanks! :)
I love you
You made this so much easier to understand than my Physics for Dummies book. My brain is doing a happy dance!
Holy shit, finally someone who explained it well. Thanks man
Best physics teacher
Question. Can you use this formula to prove that the moon landing was real or would you use a different equation?
... Seriously? You have to use the Pythagorean theorem *obviously*.
Just want to say you are great teacher. I love your energy sir.
I love this video, thank you!
He has a lot of energy, and I like it
Differential equation for the motion of a pendulum.
F = ma = -kx, sub in x = l theta and write acceleration as the second derivative of displacement. The change in displacement over time is velocity, v = dx/dt, and the change in velocity over time is acceleration, a = dv/dt = d ( dx/dt ) / dx => d^2x/dt^2.
m d^2 (l theta)/dt^2 = - k (l theta)
k = mg/l sub that in
m d^2 (l theta)/dt^2 = - mg/l (l theta)
so now we can cancel the m's and the l's
d^2(theta)/dt^2 = -g/l (theta)
This is what I was looking for, hopefully this helps other,
THANK YOU !!!
Nice enthusiasm
great work!
Good explanation.
g/l is omega, the angular frequency, denoted by a character that looks like w. Omega is equal to 2pi/T, when you rearrange for T, it comes out as it is in the video.
thank very much
hahahaha!!! The Restaurant thing was funny!! good job mate
thanks a lot.
Nice to see at least one want help from school and combinations for the first time
Very nice, I was hoping you would have also showed the equation of motion
Physics test tomorrow. Come to this guy :3
Sir you teach amazing
I love this guy xD
allllllRIIIIIIIGHT
just wondering, for the part where you put T=2pi square root ( l/g), are you sure it's not g/l?
If i use a heavy string, in my case a steel beam,,does it affect the calculation?
is he high or overly enthusiastic??
I think both
please make your own channel i enjoy ur style of teaching it speed up my brain hahah
As an exercise, you may want to check some experimental data from a pendulum experiment presented in the following video: ua-cam.com/video/vf9muwAILEM/v-deo.html For example, you can estimate the gravitational acceleration from the data taken.
ur so cool to watch dude
thanx sir:)
Dammm this guy is good. Found my favorite professor.
good work
This guy is the human manifestation of the Fundamental Theorem of Engineering and I love it!
very nice I have studied this very well
Great
getting saved by a video that is 11 years old
I started playing with the lamps, holding a stopwatch along with a ruler and a calculator after watching this :DD
Why is it the perpendicular part of the weight that creates acceleration?
Nice vid. Take it easy on the 8kg ball
greattt!!!!!!!!!!!!!!!!!!!!!! you r awesome!!!!!!!!!!!!!!!!!!!! ty!
I like this guy! no homo!... I like the way he don't care, he explains much simpler and he is honest..keep up the good work!
such fun.. lets do it exactly..
you look so funny when you count the seconds
I DIED BAHA
I love the crackhead energy from this guy
finally understand where small angle approximation comes from!
Look up taylor polynomials for more info.
what is the velocity component at the mid way?
Voiced over by Paul from Big Brother
What do you mean exactly?
Nice explanation!
I really wish my physics teacher was a pendulum so her period would only last four seconds instead of four days.
Wow, you didn't understand anything.
I would suggest for the author to add the option to embed videos. As it is now, if you would like to discuss these videos in a G+ hangout, it is not possible!
I miss this channel so much...
Very funny!
I think you missed A LOT when going from k = mg/l to the next equation
my eyes oj
hes a shoutty man and its scary
JUST SAW MYSELF IN HIM 😩😩
youre going well, untill you simply say "oh so the period is 2pi Sqrt(l/g).. youre explaining it good.. but then you state something like that and i still dont know how you got there.. like the squareroot etc.
Doc Emmet Brown....
Very very good_ from India
Like from Haryana
4/4? I can do that! lol, very shady approximations going on here.
Physics test tomorrow. Wish me good luck please :D
Alright.
when he says x=lθ, what is x? please help!!!!
It is The length of the bow that is made by theta angle
cocaine is one helluva drug
force = -mgsin(angle) . why u r taking positive ??
Because you have to define some axis before you can tell if the vector is positive or negative. And since axis aren't really necessary to describe the problem, he just talks about the vector module.
Lol that's was so easy 👊
كفو
Showed this to my cousin that is 13 and understood how it works.
isn't everyone watching this video like 13 anyway
isabelle galdau 25 year old physics teacher. Thank you for making me feel dumb.
Essa Dababneh really thought sarcasm in my comment could be detected, i meant it as a joke!
This data.. and that data.. Im going to bed. Good night fellas..
i got scared 0:02 ....the enthusiasm tho....lmao
It's better u dance first and then explain
.... BUT THAT'S HOOKE'S LAW!!!!! :OOOOOOO
you dont exactly look like a physician, but I would give anything if you gave class to me hahahaha
He has a normal look for a physician actually.
Yes I think we actually meant to say that.
?????????????????????????????
Had to watch it in 0.75 but still helped
dd u ever be a dancer ,just try u can
I read the comments first, Now I cant take him seriously
wow, simple pendulum made easier
WHY ARE WE SCREAMING
I've just found my new Bff.
This is so funny to watch in 1.5 speed
why the fuck is he reading off a sine on the x-axis?
Tired of what
Why so angry????? Its not my fault i don't know it
The energy of the instructor distracts the audience from the topic. Hope he takes more feedback.
Gandu
I can't stand your presentation style, but thanks for posting.
Thanks