i cant make functions out of word problems. my math text is constantly asking me to make stupid functions. what the hell, how are peolpe suppose to do that. i think im missing a chromosome.
weeee, it totally makes sense. Tks a lot. At school, I nearly just remember where to put a,b,c,d in h = a sin(b(x-c)) +d. now I understand thoughtfully
Isn't the simpler solution h(t) = (1 + sin (18 t)) * 8 + 1 ? From the unit circle we know that sin of a degree is the y coordinate. Sine goes from -1 to 1, so 1 + sin is gonna give a variation from 0 to 2. Then, if we multiply the sine result by 8, we move from the unit circle to the 8m radius circle, and we get the height in terms of this circle, where the lowest point is 0 and the highest is 16m. Then we add 1 since the wheel is 1 meter above the ground, and we get the height of the users as a function of time. on the ferris wheel (knowing the starting point 0 to be at 9 meters above the ground, or at 0 degrees relative to the ferris wheel center)
you made all of that based on a construction of a degree at which 9-h but if you raise the construction you will find that h-9 is the number which appears
Three revolutions per minute! Dayum!
Your comment made staying up worth it, oml XD
Thats what I said!!! Puke City!!
It is a relatively small Ferris wheel, so if you think about it, it isn't horribly fast
Sheeeeeeeesh
You made it more confusing...
bruh, what all of these comments are saying he made it more confusing.. i havent even learnt trig in my school and i completely understood it
you are my hero!!! we need more of you people around
Bro your comment was 12 years ago, are you still there?
WHY ARE YOU MAKIN SO COMPICATED JESUS
i cant make functions out of word problems. my math text is constantly asking me to make stupid functions. what the hell, how are peolpe suppose to do that. i think im missing a chromosome.
@@SkillUpMobileGaming lol, 8 years later...
@@zacharyjoleman1068 lol
Can you make another video with the same topic please. Thank you!
1:17 "I think I forgot it, so let me re-read it"
That's my favorite line in this 😆😁
ok but why did they need to specify it was in Montana
meh, i used sine instead...
h=8sin(18t-90)+9 when t=seconds
nice
thats actually pretty cool
I love this guy.
Khan Academy never fails to disappoint.
No offense, but I could probably beat you at rocket league
@@SurvivingAnotherDay u wish pal
@@trizyrl2163 Lmao I used to be a rocket league god back in the day. I'll unprivate some of my old cringy videos
Rank?
@@trizyrl2163 Grandchamp
weeee, it totally makes sense. Tks a lot. At school, I nearly just remember where to put a,b,c,d in h = a sin(b(x-c)) +d. now I understand thoughtfully
this was posted on my 4th birthday
Thank you !!! You're a lifesaver!!!
Isn't the simpler solution h(t) = (1 + sin (18 t)) * 8 + 1 ?
From the unit circle we know that sin of a degree is the y coordinate. Sine goes from -1 to 1, so 1 + sin is gonna give a variation from 0 to 2. Then, if we multiply the sine result by 8, we move from the unit circle to the 8m radius circle, and we get the height in terms of this circle, where the lowest point is 0 and the highest is 16m. Then we add 1 since the wheel is 1 meter above the ground, and we get the height of the users as a function of time. on the ferris wheel (knowing the starting point 0 to be at 9 meters above the ground, or at 0 degrees relative to the ferris wheel center)
you made all of that based on a construction of a degree at which 9-h but if you raise the construction you will find that h-9 is the number which appears
Thank you very much for making this video
thanks for the help
Better resolution?
helped me a lot thanks!
isnt h=8? cause thats the centre and the radius is 8 cm.
thanks alot that helps :) !!!
@louiseypoon sinusoidal means sin or cos :S
jajaja-7:00 someone at the door for u sal or what?
never mind you included the 1m from the ground.
Khat thank you
Thank you!
ferris wheen
Complicated
3.37meters off the ground
@louiseypoon do you know what sinusoidal functions are
if h=9, then shouldn't 9-h=0? anyone else notice that?
LOL 3:42 "let's drop a little altitude right here" for some reason your voice there sounded so seductive haha
Wait...What happens to the (9-h) side when h >= 9? Does the solution still work or do we need to modify it?
in that case cos (18t) will be negative, so the negative cancels out.
are u a math teacher??
ur really smart
I mean he is the host to one of the largest math learning websites/ youtube channels. So yes he is a math teacher of some sort.
@@jacksonporter1393 that comment is 13 years old
well was 11 years old at the time
I don’t get it it’s messy 😒
worst khan academy video wow
This is horrible! :(
You stutter and are quiet as hell