Introduction to Harmonic Motion

[Kricardose]

I am very happy to see the vidoe Intuition behind the motion of a mass on a spring after you give this

[bebeheuy]

I Love The Video Intuition behind the motion of a mass on a spring It Can Increase My Knowledge

[Mjhond]

Steady I Really Like This Video Intuition behind the motion of a mass on a spring some calculus near the end

[sebzavoico]

sal's most common quote: "ok, let me switch colors here" :D

[hacktohell]

cool ....

[2StepMurder]

4 people failed physics :(

[Be1smaht]

I feel really good that I unbnderstood all of that . :)

[CoheedAtThe930]

sometimes i just watch you're videos with a beer...your videos are so much more interesting than TV thanks man.

[f00tballfever]

kalp sucks balls and hes gay

[SuperPramod10]

its hard

[Lekiwi33]

@SuperPramod10 thats what she said

[NavjotGraphicDesign]

Please upload a video on standing waves.

[sleepyzz123]

would somebody please explain why is that the D. of p= x(t) is = to Velocity?

[6BURG9]

@sleepyzz123

i know this is an old post but w/e

have you taken calculus? then you know that the derivative is the slope of a tangent to any point on the graph.

if you look at the slope of a displacement(x) vs time graph(rise over run) you get displacement over time(m/s)

these units imply velocity.

[MellowCruisin]

1.21 gigawatts? 1.21 gigawatts? Great Scott!

[Morelloo1]

does A and -A (amplitudes) set the boundary for the maximum distance you can pull the mass M? Or can you pull the mass past A? and the distance that you pull the M past equilibrium, does it reflect back the same distance that you pulled it (lets say you let go from A, does it go exactly to -A?). I'm guessing that friction is ignored so it would constant go from maximum to minimum amplitude as you drew in the graph

[cshanew123]

You are the man haha, all of ur videos are sooo helpful to everything im learning at school

[wtv12345678]

Thx so muchfor the videos! but if you dont mind me asking, how come there is no phi in the equation? I dont understand it very well, where it comes from and how it makes the questions more complicated... if you could briefly explain it, that would be much appreciated I'm sure! ^^

[Pilky10]

does anyone know who this guy is?

[zackboomer]

@Pilky10 salman khan..

[rohannesburg]

once you understand whats going on, Solving problems is wierd, cos u don't know what to do

[bobpower]

haha ''deceEElerating''

awesome video!! cheers!!

[20thousandlightyears]

i love you

[Kywdo]

Nice work !!! PS: The "wave" goes after the "v" formula is explained by points; don't let time to push you.

[rinwhr]

lol doing this in high school

[success4pak]

Just A Request....

Kindly upload videos on following topics. They are driving me crazy!

Standing waves, Sonometer, Newton's formula for speed of sound waves, its correction, interference, beats, Doppler Effect and remaining I'll tell you later.

I'll be really grateful if you upload those videos within a month. Gonna hv my exams at the end of March.

[MidStyx]

Thank you very much! really this video is great! helped me a lot!

[ftc68]

thank you for the informative presentation.

if only other HBS graduates were as committed to contributing society isn't of exploiting it...

[jwall9108]

Can't wait to A'ce tomorrows physics exam

Thanks!!

[stewart2012]

thank you!

[Julian3190]

Your getting me through first year engineering, one video at a time!

[candikitty8]

holy shit you're learning this in engineering?!?! I'm taking it in grade 11 physics (or physics 20) i knew the curriculum in alberta was a bit advanced but that pretty crazy, if you dont mind me asking where are you from??

[Julian3190]

we learned this in grade 11 aswell, im from ontario. the thing is, alot of first year physics does review and then expands on topics. So we still expand on this material a bit.

[johnwagu]

ryerson?

[Julian3190]

McMaster

[johnwagu]

what textbook do you guys use over there? cause i know UofT and ryerson have some textbooks identicle

[Julian3190]

Physics for scientists and engineers 7th edition, Thomson. -is the first year book

[NightSnake]

Thank you, if my T.A. was half as good as you are at explaining I would not even need study.

[adamsx01x]

i learnt this today in physics and semi- got it, and now i completely get it... this is the future of teaching|!!!

[muranvya]

This guy is awesome, many thanks, Im wondering if he even got a prize.This explains more than teacher or book. Write a request or sumthin,

[CastorEnPollux]

:D ex-Sal-arating...

[kkhacc]

i love his voice...its calming and comforting....helps me understand easier!

[ureasonnable]

when an object is inertia that mean that no force is applied upon it and if there is no force , there is no acceleration.

when object in space has no force acting on it ,it does not accelerate  and stay in its state of motion.

[captainspiwtf]

Thumbs up, I haven't met a single person yet that has been able to explain s.h.m with that amount of clarity.

[xixzxzxyx]

In 9:20 did you just put it as a partial derivative? LOL

[calvinhobbesliker2]

No, it's an ordinary derivative.

[safithegr8]

my teacher says that the spontaneous movement away from point O is due to inertia...... is it inertia or momentum?????

[dannyboy12357]

inertia and momentum are interlinked

[xzxz619]

How in the hell does this make sense to me?,  but Geometry and Trigonometry makes no sense?

[hits101]

But you definitely need a good solid understanding of trig fuctions to understand harmonic motions so you're probably not as bad as you think.

[ezpiman]

This video is well done, with little reliance on trigonometry and much reliance on common sense.