Picture Request for my calculus final exam...

berniepiet
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berniepiet 6/3/2017 9:18am
6/3/2017 9:18am
fullfloater wrote:
It's a final. Might as well make it challenging. [img]http://www.dirtbikerider.com/news/images/themacisbackronniemactrainsforredbullstraightrhythm_57fd7e727377e.jpg[/img]
It's a final. Might as well make it challenging.


Dude is Core...
APLMAN99
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APLMAN99 6/3/2017 5:28pm
6/3/2017 5:28pm
gt80rider wrote:
Wow.... So... Where is the real world application to this? Are you sure you aren't making the kids in your class stupider???
m121c wrote:
Real world application would be everything engineered in your everyday life... there is a reason you go through 3+ levels of Calculus before you can even...
Real world application would be everything engineered in your everyday life... there is a reason you go through 3+ levels of Calculus before you can even get into engineering school.

I'm currently going into Calculus 3 this fall. Pretty cool to see a more creative question out of the normal "train/plane does this" or "liquid spill spreads out a certain amount blah blah blah".
Yep, most folks don't "get" that pure math doesn't have to have a "real world" application to build on our understanding........
enketchum
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enketchum 6/6/2017 3:05pm
6/6/2017 3:05pm
gt80rider wrote:
Wow.... So... Where is the real world application to this? Are you sure you aren't making the kids in your class stupider???
I cannot tell if you are trolling or not. Please help me
enketchum
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enketchum 6/6/2017 3:06pm
6/6/2017 3:06pm
dkg wrote:
What about using the length of the tuff blocks?
I have tried finding the lengths of the Tuff Blocks but the dimensions are nowhere to be found on the interbuttz

The Shop

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enketchum
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enketchum 6/6/2017 3:11pm
6/6/2017 3:11pm Edited Date/Time 6/6/2017 3:12pm
m121c wrote:
Real world application would be everything engineered in your everyday life... there is a reason you go through 3+ levels of Calculus before you can even...
Real world application would be everything engineered in your everyday life... there is a reason you go through 3+ levels of Calculus before you can even get into engineering school.

I'm currently going into Calculus 3 this fall. Pretty cool to see a more creative question out of the normal "train/plane does this" or "liquid spill spreads out a certain amount blah blah blah".
Thank you. I can't stand those acceleration, velocity, position questions... They are so boring.

Here's a great, a hospital built in 1923 has a conical water tank on the roof of the building that supplies water to the operating room. At what water height does the tank create a low pressure that kills the patient being operated on? That shit pisses me off, too. No one uses water pressure from tanks anymore. Everything is pumped now. And if you are a small operation that is using a tank for pressure. go to Harbor Freight, buy a pressure gauage, and measure a few water heights and mark the pressure on the outside of the tank. There is no reason to know exact pressure at water height for applications like these. useless math
enketchum
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enketchum 6/6/2017 3:14pm
6/6/2017 3:14pm
croom mx wrote:
A= integrate f(x) - g(x) dy .
you need to group the difference of f and g and based on these planes, you would use dx, especially because you wrote f and g as functions of x

just trying to help you out
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enketchum 6/6/2017 3:16pm
6/6/2017 3:16pm
APLMAN99 wrote:
Yep, most folks don't "get" that pure math doesn't have to have a "real world" application to build on our understanding........
I don't understand the original question or your response because using the math to find these volumes of actual objects is not pure math, it's applied.

I don't understand this whole argument.
kott0n
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kott0n 6/6/2017 3:26pm
6/6/2017 3:26pm
You guys are absurd. This is the kind of math I needed in school.
funktree
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funktree 6/6/2017 5:19pm
6/6/2017 5:19pm
m121c wrote:
Real world application would be everything engineered in your everyday life... there is a reason you go through 3+ levels of Calculus before you can even...
Real world application would be everything engineered in your everyday life... there is a reason you go through 3+ levels of Calculus before you can even get into engineering school.

I'm currently going into Calculus 3 this fall. Pretty cool to see a more creative question out of the normal "train/plane does this" or "liquid spill spreads out a certain amount blah blah blah".
enketchum wrote:
Thank you. I can't stand those acceleration, velocity, position questions... They are so boring. Here's a great, a hospital built in 1923 has a conical water...
Thank you. I can't stand those acceleration, velocity, position questions... They are so boring.

Here's a great, a hospital built in 1923 has a conical water tank on the roof of the building that supplies water to the operating room. At what water height does the tank create a low pressure that kills the patient being operated on? That shit pisses me off, too. No one uses water pressure from tanks anymore. Everything is pumped now. And if you are a small operation that is using a tank for pressure. go to Harbor Freight, buy a pressure gauage, and measure a few water heights and mark the pressure on the outside of the tank. There is no reason to know exact pressure at water height for applications like these. useless math
No calculus needed on that water one, 1 psi every 2.31 feet of head.
nytsmaC
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nytsmaC 6/6/2017 5:23pm
6/6/2017 5:23pm


APLMAN99
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APLMAN99 6/6/2017 5:36pm
6/6/2017 5:36pm
APLMAN99 wrote:
Yep, most folks don't "get" that pure math doesn't have to have a "real world" application to build on our understanding........
enketchum wrote:
I don't understand the original question or your response because using the math to find these volumes of actual objects is not pure math, it's applied...
I don't understand the original question or your response because using the math to find these volumes of actual objects is not pure math, it's applied.

I don't understand this whole argument.
My response wasn't about your example, but rather the attitudes that arise from people who don't seem to understand that math doesn't have to have a practical application to be useful and to build upon our base of knowledge and understanding.

Trust me, my son gets plenty of folks asking him why he works on the math that he does because they don't see any "real use" for it.......
aeffertz
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aeffertz 6/6/2017 5:45pm
6/6/2017 5:45pm
enketchum wrote:
Hello, I have a picture request. I am looking for pictures of supercross triples with riders on or above them. I am giving a non-AP Calculus...
Hello, I have a picture request. I am looking for pictures of supercross triples with riders on or above them.

I am giving a non-AP Calculus final next week and I want my students to calculate the volume of an entire supercross triple. I have done this in years passed with whoops. They need a rider in the photo to estimate the measurements of each jump.

This is the best I have so far, but I'm looking for something with a rider jumping it for reference and maybe more from the side.

Thank you,
Eric
gt80rider wrote:
Wow.... So... Where is the real world application to this? Are you sure you aren't making the kids in your class stupider???
We need to fill the triples in with more dirt (to make them into tabletops) for amateur day. How much dirt do we need to order if there are 3 triples on the track?
kott0n
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kott0n 6/6/2017 5:49pm
6/6/2017 5:49pm Edited Date/Time 6/6/2017 5:50pm
APLMAN99 wrote:
Yep, most folks don't "get" that pure math doesn't have to have a "real world" application to build on our understanding........
enketchum wrote:
I don't understand the original question or your response because using the math to find these volumes of actual objects is not pure math, it's applied...
I don't understand the original question or your response because using the math to find these volumes of actual objects is not pure math, it's applied.

I don't understand this whole argument.
APLMAN99 wrote:
My response wasn't about your example, but rather the attitudes that arise from people who don't seem to understand that math doesn't have to have a...
My response wasn't about your example, but rather the attitudes that arise from people who don't seem to understand that math doesn't have to have a practical application to be useful and to build upon our base of knowledge and understanding.

Trust me, my son gets plenty of folks asking him why he works on the math that he does because they don't see any "real use" for it.......
He was confused because you decided to state the obvious. I'll do the same to clarify things for you.

Yes, some people can understand math without practical applications. There is a WHOLE OTHER GROUP that does better with practical applications. There is also some belief that practical applications DRIVE theory. As in how do I prove the theory without applying it to something?
ktmdan
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ktmdan 6/6/2017 5:53pm
6/6/2017 5:53pm
Please show us the test question when you put it together!

I remember a problem in my dynamics book with a pic of a dude on a yz 125. Wish I remembered the question.

One of my college calculus text books was written by a 'James Stewart'. https://en.wikipedia.org/wiki/James_Stewart_(mathematician)

I started a job recently in a engine research and development division. One of the senior engineers (and former professor) gives free lectures once a month during lunch. The last two were on piston rings, and then engine heat transfer. You must be trolling if you think math has no real world application.

I'm currently taking a break from studying for the FE exam. I'm having to relearn a lot of math topics. It's much easier the second time you learn it Smile
dkg
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dkg 6/6/2017 7:24pm
6/6/2017 7:24pm
enketchum wrote:
I have tried finding the lengths of the Tuff Blocks but the dimensions are nowhere to be found on the interbuttz
Saw someplace 44".
APLMAN99
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APLMAN99 6/6/2017 7:36pm
6/6/2017 7:36pm
m121c wrote:
Real world application would be everything engineered in your everyday life... there is a reason you go through 3+ levels of Calculus before you can even...
Real world application would be everything engineered in your everyday life... there is a reason you go through 3+ levels of Calculus before you can even get into engineering school.

I'm currently going into Calculus 3 this fall. Pretty cool to see a more creative question out of the normal "train/plane does this" or "liquid spill spreads out a certain amount blah blah blah".
enketchum wrote:
Thank you. I can't stand those acceleration, velocity, position questions... They are so boring. Here's a great, a hospital built in 1923 has a conical water...
Thank you. I can't stand those acceleration, velocity, position questions... They are so boring.

Here's a great, a hospital built in 1923 has a conical water tank on the roof of the building that supplies water to the operating room. At what water height does the tank create a low pressure that kills the patient being operated on? That shit pisses me off, too. No one uses water pressure from tanks anymore. Everything is pumped now. And if you are a small operation that is using a tank for pressure. go to Harbor Freight, buy a pressure gauage, and measure a few water heights and mark the pressure on the outside of the tank. There is no reason to know exact pressure at water height for applications like these. useless math
Not everything is pumped. There's still plenty of gravity flow applications in irrigation. One of our orchards uses a reservoir that we fill with a pump, but our irrigation lines flowing down from it are all gravity fed. I'm pretty sure that our local ski area's snow making system is gravity flow also. Definitely not as common as it used to be, probably, but the concepts and the reasoning would still be good.
APLMAN99
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APLMAN99 6/6/2017 7:51pm
6/6/2017 7:51pm
This drawing may be better than most pictures, but you'd have to paste a clip art image of a motorcycle on it......



bkent136
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bkent136 6/6/2017 9:15pm
6/6/2017 9:15pm Edited Date/Time 6/6/2017 9:19pm
Lol this is an evil question. They're gonna have to take the integral of sin(x) from 0 to pi, but they'll get 0 because you should really do it 2 times the integral of sin(x) from 0 to pi/2. Then multiply that by width "w" and then multiply that by number of whoops. Then multiply that by 2 because you want the area from y=-1 to 1 since whoops are shaped like a sin wave standing up on its lower peaks. And then you're gonna have to add another half a whoop in because of the first and last whoop needing to start and end at y=-1 lmao

Pit Row

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bkent136
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bkent136 6/6/2017 9:21pm
6/6/2017 9:21pm Edited Date/Time 6/6/2017 9:21pm
You could also model a triple using a sin wave for the 2nd 2 jumps, and a tan wave modeled from 0 to pi/3 as the take off
-MAVERICK-
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-MAVERICK- 6/6/2017 11:25pm
6/6/2017 11:25pm
I couldn't find anything in regards to the size of tuff blocks but you might want to contact the following guys and ask them what size they use for supercross. The only measurements on the site are for the A-Frame platforms you sometimes see guys pull across the start after the gate drops.

http://tuffblocks.biz/

enketchum
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enketchum 6/7/2017 12:32am
6/7/2017 12:32am
funktree wrote:
No calculus needed on that water one, 1 psi every 2.31 feet of head.
oh, so even though there is around 14psi acting on the surface of the water, via ambient air, you only get 1psi from 2.3 feet?

that's not how it works
enketchum
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enketchum 6/7/2017 12:33am
6/7/2017 12:33am
nytsmaC wrote:
[img]https://p.vitalmx.com/photos/forums/2017/06/06/199196/s1200_IMG_3484.jpg[/img]


I love the guy pinning the throttle... and he isn't even on the bike. classic picture
enketchum
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enketchum 6/7/2017 12:34am
6/7/2017 12:34am
APLMAN99 wrote:
My response wasn't about your example, but rather the attitudes that arise from people who don't seem to understand that math doesn't have to have a...
My response wasn't about your example, but rather the attitudes that arise from people who don't seem to understand that math doesn't have to have a practical application to be useful and to build upon our base of knowledge and understanding.

Trust me, my son gets plenty of folks asking him why he works on the math that he does because they don't see any "real use" for it.......
Oh, I was a pure major. I did all that shit. I hated it near the end. I learned way too much topology and other various pure topics that I will never use as a math teacher. I fully support your view of pure math.

I didn't know you were talking about pure math the college level. I assumed you were saying pure was better to teach to students in the public school classroom rather than applying to things that interest them and that they may encounter in the real world. that is common core
enketchum
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enketchum 6/7/2017 12:36am
6/7/2017 12:36am
ktmdan wrote:
Please show us the test question when you put it together! I remember a problem in my dynamics book with a pic of a dude on...
Please show us the test question when you put it together!

I remember a problem in my dynamics book with a pic of a dude on a yz 125. Wish I remembered the question.

One of my college calculus text books was written by a 'James Stewart'. https://en.wikipedia.org/wiki/James_Stewart_(mathematician)

I started a job recently in a engine research and development division. One of the senior engineers (and former professor) gives free lectures once a month during lunch. The last two were on piston rings, and then engine heat transfer. You must be trolling if you think math has no real world application.

I'm currently taking a break from studying for the FE exam. I'm having to relearn a lot of math topics. It's much easier the second time you learn it Smile
James Stewart came to my college and gave a lecture one night as part of a math club deal. We thought it was gonna be awesome and hundreds of students showed up. We had to move it to a bigger lecture hall and we all shuffled along...

then he introduced himself and started showing demos of his new online activities that went along with his book. it was hella boring and we were all disappointed except for the Stewart fanbois in the engineering dept.

He spent about as much time signing calculus books as he spent lecturing. kinda sad
enketchum
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enketchum 6/7/2017 12:38am
6/7/2017 12:38am
bkent136 wrote:
You could also model a triple using a sin wave for the 2nd 2 jumps, and a tan wave modeled from 0 to pi/3 as the...
You could also model a triple using a sin wave for the 2nd 2 jumps, and a tan wave modeled from 0 to pi/3 as the take off
huh, tangent isn't a continuous function. how is that going to work?
enketchum
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enketchum 6/7/2017 12:38am
6/7/2017 12:38am
APLMAN99 wrote:
This drawing may be better than most pictures, but you'd have to paste a clip art image of a motorcycle on it...... [img]https://p.vitalmx.com/photos/forums/2017/06/06/199205/s1200_image.jpg[/img]
This drawing may be better than most pictures, but you'd have to paste a clip art image of a motorcycle on it......



but then students are going to start a debate about this being a TRIPLE OR A QUAD and they won't have any time for the actual project.

that's my best joke all day
enketchum
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enketchum 6/7/2017 12:40am
6/7/2017 12:40am
-MAVERICK- wrote:
I couldn't find anything in regards to the size of tuff blocks but you might want to contact the following guys and ask them what size...
I couldn't find anything in regards to the size of tuff blocks but you might want to contact the following guys and ask them what size they use for supercross. The only measurements on the site are for the A-Frame platforms you sometimes see guys pull across the start after the gate drops.

http://tuffblocks.biz/

"MY FINAL EXAM IS TOMORROW I CANT HANDLE THE PRESSURE THE PRESSURE TO SUCCEED IS OPPRESSIVE AND I DONT HAVE TIME TO CONTACT THESE PEOPLE AND FIND THE DIMENSIONS OF THE...."

"the final was today."

"WHUT?"

"today, June 6, 10:15am."

"FUuuuu"
-MAVERICK-
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-MAVERICK- 6/7/2017 12:54am
6/7/2017 12:54am
enketchum wrote:
Hello, I have a picture request. I am looking for pictures of supercross triples with riders on or above them. I am giving a non-AP Calculus...
Hello, I have a picture request. I am looking for pictures of supercross triples with riders on or above them.

I am giving a non-AP Calculus final next week and I want my students to calculate the volume of an entire supercross triple. I have done this in years passed with whoops. They need a rider in the photo to estimate the measurements of each jump.

This is the best I have so far, but I'm looking for something with a rider jumping it for reference and maybe more from the side.

Thank you,
Eric
Not sure if this will be of any help or not but I came across this article http://www.pe.com/2015/01/26/zink-math-meets-motors-in-poly8217s-motocr…. You might want to try and contact that guy on Facebook, Instagram, etc. to see if he can help you out.

Facebook: https://www.facebook.com/drmichaelroe?ref=tn_tnmn

Website: http://drmichaelroe.weebly.com/

7018.2 cubic feet of dirt to fill in order to fill 1 triple jump.






-MAVERICK-
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-MAVERICK- 6/7/2017 1:30am
6/7/2017 1:30am
It's a small clip but there's a good view of the triple.

Post a reply to: Picture Request for my calculus final exam...