Holy cow, I'm learning this in Vietnam as a Highschool 12th grader, it's confusing and giving me a hard time, this actually just answered all of my questions. And give me answer for question I didn't know I need! Thank you
I know this is from three years ago, but you can express the graph that you gave as an example in terms of sine, assuming you shifted the whole graph to the right 1 unit (sec) so it would be like : 3sin ( (2*PI/4) (t-1) )
thank u saved me from my exam. Im a 11th grade student but STILL dont know whats the correlation of sin, cos, tan and why we use em. My physic teacher is just telling the formula, what should we use to replace the variables and viola test time. i liked science a lot but i tihnk i just lose my hope at this point.
4:28 *please help!* How can we put *t= 2pi* when t is *time* and 2pi radians is the *displacement/angle travelled* ? How are we equating these different physical quantities together?
7:23 why are we putting delta theta as 2pi? Coz as soon as the oscillator comes back to its original position at time T, the displacement is 0 and not 2pi? I'd be extremely thankful to anyone who can explain🙏
Govinda S well even if we consider the angular aspect, it object will be at the exact same spot again, (after going around the circle once), so wouldn't the *angular* as well as *linear* Displacement be 0, although the angular Distance travelled may be 2π radians or 360°?🤔🤔🤔
Basically to bring the mass on the spring into motion, you have to pull it back a bit first right? So it's already displaced by how much you pull it back. That initial displacement is why at time=0, the graph has an amplitude maximum. And since the graph intersects the Y axis, (in this case the horizontal position X) at a Maximum at time=0, it'd have to be a cosine function.
@@sarimkidwai2218 You can also have another mass hit this mass when it's still and give it a Velocity. It really just depends on when you start the time ,but in physics we generally start the time at the moment the mass has x=0 and V=+Vmax
If frequency increases in SHM, so does the acceleration. But does it make sense that high frequencies impose such a high acceleration? How do you account for this biased acceleration given by high frequencies. For instance, for SHM, a=( 2*pi*f)^2. How do you account for the fact that lower frequencies have more detrimental effects that high frequencies?
I had to come here to get an answer for pendular motion. Teachers are afraid to teach us calculus, they know not what capable of we are (junior high btw)
this was so baad dude i love khan academy but you just made it seem like we use this equation because it works on 0 and 1 and it behaves simillarly to what this hand drawing of movement looks like
Siya Yas مر عامين، عند كتابتي لتعليق كنت في اول سنه لي بالجامعه ولا افقه شيئاً باللغه الانجليزية.. الان بقي لي سنه واتخرج من تخصص كله باللغة الانجليزيه والله ياسرع الايام 🥺 ورمضانك مبارك
This guy is incredibly good at explaining physics concepts. This is the best SHM video I've found on TH-cam.
SAME YOU
Holy cow, I'm learning this in Vietnam as a Highschool 12th grader, it's confusing and giving me a hard time, this actually just answered all of my questions. And give me answer for question I didn't know I need! Thank you
same 11th grade in India, this channel is so good!
Wonderful explanation. Hit the nail on exactly what I was struggling with. Thanks for your help, David!
awesome explanation, you just saved a french first year mecanical engineering student
wow we do this at a level
A-H Brawls! Malaysians do this at preU as well!
We have this stuff for high school ,lol ,We are as good as dead
high-five ya'll A levelz @_@
In Bangladesh, we do this stuff from kindergarten
The lessons on Khan Academy are very useful and clear! Keep up the good work!
I do not know how I didn't see this as just a high school senior-level math problem... literally learned this in trig... thank you!
Great explanation! Thank you! This function is beautiful when you completly realize how it works!
Thank you very much David!. I got confused on the "re-setting part of the equation" but thanks to you it was much clearer!.
7:33, literally answered the exact question I needed, how to get angular velocity out of velocity.
angular velocity (omega) = v (linear velocity)÷r
As a jee aspirant and a 12th grader i can't express how amazing this video is. Made me learn the formula just by simple logic 👍🏻📚
9:04 In my humble opinion, using 2pi/2 could be simply illustrated in terms of horizontal dilation i.e 2pi*λ=T so that λ=T/2pi, and hence 1/λ=2pi/T.
Perfect explanation than any video on youtube till now
this vid on harmonics is the one I understand the most. thanks a lot!
couldn't be explained better. thanks.
I know this is from three years ago, but you can express the graph that you gave as an example in terms of sine, assuming you shifted the whole graph to the right 1 unit (sec) so it would be like : 3sin ( (2*PI/4) (t-1) )
nobody:
Khan Academy@ 9:23: PERIOD !
Thank you for simplifying such a chronic problems of mine❤❤
Thanks a lot ! i understood in the first shot ! much easier to understand than my text ! thx again !
You are a G my dude. Saved me so much time and energy.
Absolute mad lad. You’re my hero m8
This guy is a Godsend!
Beautifully explained. You just saved a student's life
This is amazing thanks!
awesome explanation!
Duuuuuuuuuuuuuuude!!!! This was AMAZING! just a.m.a.z.i.n.g.
THANK YOU
thank u saved me from my exam. Im a 11th grade student but STILL dont know whats the correlation of sin, cos, tan and why we use em. My physic teacher is just telling the formula, what should we use to replace the variables and viola test time. i liked science a lot but i tihnk i just lose my hope at this point.
I hope you're doing good now.
Cool explanation. ..definitely wasn't bored
Thank you for making it easy to understand.
This was super helpful!!!!! TYSM
It helps me a lot .....Thanks david sir
How to know if use sin or cos?!
Many thanks for your clear explanation; now I finally understand it and don't have to memorize it.
Best explanation !
If not for my large number of saved liked videos I would've given a like to almost every single video you make 😂 , thanks allot really you saved me
this is what I needed for a starfield simulation elliptical-orbit I am working on for my game... thanks!
Is your game released yet
Best video to learn shm on yt
Explanation couldn't be better than this.
4:28 *please help!*
How can we put *t= 2pi* when t is *time* and 2pi radians is the *displacement/angle travelled* ? How are we equating these different physical quantities together?
icecream follow
Govinda S isn't time period T? And t a variable?
This eplanation is a real period!
Hello sir! I would like to know about the usage of phase constant(phi) in SHM equation.
phase constant indicates that the graph looks like sin or cosin
You're awesome ✌🏻
thanks
Absolute legend!!!
Excellent teaching sir!
Eres increible! gracias!
you forgot to add the phase angle
7:23 why are we putting delta theta as 2pi? Coz as soon as the oscillator comes back to its original position at time T, the displacement is 0 and not 2pi? I'd be extremely thankful to anyone who can explain🙏
icecream +f
Govinda S well even if we consider the angular aspect, it object will be at the exact same spot again, (after going around the circle once), so wouldn't the *angular* as well as *linear* Displacement be 0, although the angular Distance travelled may be 2π radians or 360°?🤔🤔🤔
Govinda S hey thank you for replying!
Ah yes I have this same question as the person above👆👆👆
very good lesson
What app do you use for the visuals?
Really helpful video thanks alot
khan academy i love you
Man I am a 9th grade. Your explanation has made me understand the concepts of 11th and 12th grade with ease
woah! You were studying this in 9th class! Are you studying college stuff now?
Thank u a lot.....
THANKS A LOT !!
Just superb!
Thank you Kermit
May I know why is the position graph starts at the maximum. Isn't it suppose to start at the point zero and form a sin graph?
Basically to bring the mass on the spring into motion, you have to pull it back a bit first right? So it's already displaced by how much you pull it back. That initial displacement is why at time=0, the graph has an amplitude maximum. And since the graph intersects the Y axis, (in this case the horizontal position X) at a Maximum at time=0, it'd have to be a cosine function.
@@sarimkidwai2218 You can also have another mass hit this mass when it's still and give it a Velocity. It really just depends on when you start the time ,but in physics we generally start the time at the moment the mass has x=0 and V=+Vmax
Thank you!
Beautiful!
How can we find the pseudo period, any answer please ?!
Just awesome
HELLO IAM LEARNING FROM SOMALIA THANKS
wow. Wow. WOW
If frequency increases in SHM, so does the acceleration. But does it make sense that high frequencies impose such a high acceleration? How do you account for this biased acceleration given by high frequencies. For instance, for SHM, a=( 2*pi*f)^2. How do you account for the fact that lower frequencies have more detrimental effects that high frequencies?
Fireeee🔥🔥
AWSOME
thanks u saved a student from pakistan
I had to come here to get an answer for pendular motion. Teachers are afraid to teach us calculus, they know not what capable of we are (junior high btw)
when you understand it so well that u need the guy to just continue talking.
tthks
i love you
#HELP#... how to know if a given equation represents a SHM or just a periodic motion,,pls help!!!!!!
Muhilan +follow
Wait is it sik-lik or saaik-lik processes??
👍
Why do you keep emphasizing that you don't put in anything for the unknown?
I wanna have vietsub
Unfortunately you are looking for y and not the x axis.
But 2pi is equal to six wtf?
I'm not really cl ver
Struggle to locate the cursor
this was so baad dude i love khan academy but you just made it seem like we use this equation because it works on 0 and 1 and it behaves simillarly to what this hand drawing of movement looks like
This shit is 5th grade in Serbia wtf
thats a shame. I did this when i was 12 months old.
Please translate in arabic ppplllleeeaaaassseeee :(
يا عزيزتي .. يجب تعلم الانجليزية لانها مهمة جدا في لحظات كهذه .... مر عام .. رمضانك مبارك
Siya Yas مر عامين، عند كتابتي لتعليق كنت في اول سنه لي بالجامعه ولا افقه شيئاً باللغه الانجليزية.. الان بقي لي سنه واتخرج من تخصص كله باللغة الانجليزيه والله ياسرع الايام 🥺 ورمضانك مبارك
@@نورة-ذ1ن4د ماشاء الله تبارك الله ...💙
Thanks a lot ...
I love you