Yeah, I had no idea where I was going with this one, so it just turned out to be… not very interesting. The idea seemed a lot more interesting in class, I guess. Oh well. It’s just another one of those “applying math concepts to real life situations” things, like this or possibly this (but not really). Anyway, that was the exact “real-life” problem we went over in class today.
Assume that the average mass of each of the approximately 1 billion people in China is 55 kg. Assume that they all gather in one place and climb to the top of 2 m high ladders. The center of mass of the Earth is then displaced by how much?
My car only needs 1 or 2 seconds to make a change in velocity of 10mph.
That cop would not have much of a case since the average speed was about 60mph and thus they would not likely hand out ticket since it would not be worth the effort.
On the Chinese jumping question not very much it likely wouldn’t even register on the seismograph.
The Earth’s mass is 5.9736×10^24 Kg or 108.6 trillion times 55 billion Kg mass of the Chinese.
After falling 2M they would hit the ground at 6.2M/sec use the old f=1/2MV^2 you get 864 newtons each.
After some work I get .08 nm/sec velocity change to earth.
@Nitori MacGuyver
The question isn’t asking for the change in speed of the Earth by jumping asians. It’s asking about the center of mass of the earth being displaced, like two weights on a stick that can slide. On a side note, the force of each person is ~1057 N (27.5*38.44). a=F/m so a=1.057*10^9/5.9736*10^24 which means 1.77*10^-16m/sec^2 which is nearing femtometers (who the hell uses femto).
The mean value theorem was first used by cops to easily get more tickets to fill their month’s quota. This was used by arbitrarily rude officers which didn’t pride themselves on their math skills. Thus instead of calculating over a 60 meter distance, they used 30 meters.
Thus explaining how the mean value theorem got it’s name.
The poor teacher’s completely oblivious to the fact that imagination sequences only exist, because they happen only in UNChar’s mind, and in fact, we only know about them thanks to Yukari sneaking in with a camcorder.
“My car only needs 1 or 2 seconds to make a change in velocity of 10mph.”
That’s irrelevant. You’re misunderstanding the problem. The current speed of the car as recorded by the cop is irrelevant.
You have a distance of 60 miles between the points. This distance was covered in 1 hour. Thus the average speed over this 1 hr period is 60 mph, which is over the speed limit. It is impossible to reach an average speed of 60 mph without going at least 60 mph, thus it is impossible that the car was obeying the speed limit. It doesn’t mean that the car was ALWAYS above the speed limit, just that at some point within that 60 mile stretch, the car was speeding.
Assuming car B actually traveled the 60 miles between the two officers; the manner in which the distance is quantified and the actual traveled distance of car B are not explicitly defined.
That joke about the theorem being mean because police officers were being actually made me laugh. Good job, person-who-made-that-joke.
This was one of the funniest daily flashes you’ve made. And Nameless Character is obviously aware of her special powers. Will she use them for good, or awesome?
Awesome. XD
“You mean this isn’t an imagination sequence?”
Policeman got pwned
For some reason I liked the ‘It’s Not.’ at the very end, but I do not know why. Yay!
Assume that the average mass of each of the approximately 1 billion people in China is 55 kg. Assume that they all gather in one place and climb to the top of 2 m high ladders. The center of mass of the Earth is then displaced by how much?
What’s your mean value theorem now?
What?
My car only needs 1 or 2 seconds to make a change in velocity of 10mph.
That cop would not have much of a case since the average speed was about 60mph and thus they would not likely hand out ticket since it would not be worth the effort.
On the Chinese jumping question not very much it likely wouldn’t even register on the seismograph.
The Earth’s mass is 5.9736×10^24 Kg or 108.6 trillion times 55 billion Kg mass of the Chinese.
After falling 2M they would hit the ground at 6.2M/sec use the old f=1/2MV^2 you get 864 newtons each.
After some work I get .08 nm/sec velocity change to earth.
@Nitori MacGuyver
The question isn’t asking for the change in speed of the Earth by jumping asians. It’s asking about the center of mass of the earth being displaced, like two weights on a stick that can slide. On a side note, the force of each person is ~1057 N (27.5*38.44). a=F/m so a=1.057*10^9/5.9736*10^24 which means 1.77*10^-16m/sec^2 which is nearing femtometers (who the hell uses femto).
aha….. I think I love this place even more. Reminds me of my nerdy high school friends. lol
Now….I was doing some dynamics schoolwork, yes I was….
*stares at the wordy mathematical explanations and dies from a brain rupture*
I thought only Nameless Character could start up imagination sequences.
i liked it :D
Math confuses me. But I liked this. :D
SPEEDING TEACHER IS SPEEDING
EXTREME SPEEDI- oh wait that joke is over isn’t it
The mean value theorem was first used by cops to easily get more tickets to fill their month’s quota. This was used by arbitrarily rude officers which didn’t pride themselves on their math skills. Thus instead of calculating over a 60 meter distance, they used 30 meters.
Thus explaining how the mean value theorem got it’s name.
The poor teacher’s completely oblivious to the fact that imagination sequences only exist, because they happen only in UNChar’s mind, and in fact, we only know about them thanks to Yukari sneaking in with a camcorder.
@SomethingUnreal: YUKARI HAS INVADED OUR GRAP- er, IMAGINATION SEQUENCE
..what? ?_?
i r confused
Teacher evades Death Sentence by Yuyuko!
Thank the gods for Imagination Sequence!
This flash was awesome
omg, the teacher was so close to being arrested and sentenced to Yuyu death!
…you lost me.
And now I’ve found you again!
… Wait, what were we talking about?
“My car only needs 1 or 2 seconds to make a change in velocity of 10mph.”
That’s irrelevant. You’re misunderstanding the problem. The current speed of the car as recorded by the cop is irrelevant.
You have a distance of 60 miles between the points. This distance was covered in 1 hour. Thus the average speed over this 1 hr period is 60 mph, which is over the speed limit. It is impossible to reach an average speed of 60 mph without going at least 60 mph, thus it is impossible that the car was obeying the speed limit. It doesn’t mean that the car was ALWAYS above the speed limit, just that at some point within that 60 mile stretch, the car was speeding.
Watch out, Teacher!
That’s no policeman, that’s FAKEMAN!
Assuming car B actually traveled the 60 miles between the two officers; the manner in which the distance is quantified and the actual traveled distance of car B are not explicitly defined.
That joke about the theorem being mean because police officers were being actually made me laugh. Good job, person-who-made-that-joke.
This was one of the funniest daily flashes you’ve made. And Nameless Character is obviously aware of her special powers. Will she use them for good, or awesome?