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Opdracht 2 : Raadsel

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vinni
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Post  verage Mon Dec 31, 2012 9:58 pm


Je wil eenn kan water verplaatsen met behulp van een ronde stok en een plank waarop je de kan water zet.
Als je weet dat de stok een doorsnede van 3 cm heeft, hoeveel zal de waterkan dan verplaatst zijn na één volledige omwenteling van de stok?

De oplossing moet samen met de teamnaam afgeleverd worden.
Bij een goed antwoord volgt een beloning, echter bij een foutief antwoord volgt er een straf.


\_/ <---- waterkan
____________________ <-- plank
O <------- stok/boom met diameter 3cm.


Last edited by verage on Wed Jan 02, 2013 11:06 am; edited 1 time in total

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Post  vinni Tue Jan 01, 2013 10:53 pm

Allright, I be assumin' that ye be usin' the round stick as a type o' wheel-like construction?

Get goin' laddies, get that piece o' shite you call a brain to work!!

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Post  vinni Thu Jan 03, 2013 5:16 am

OI YA GOBSHITES, GET YER THINKIN' CAP ON!

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Post  Kerlesh Thu Jan 03, 2013 11:53 am

Usin normal math(pi x dia) I'd say 9.42cm but I wonder what the catch is.

The world we are in today is nothing like the world as we knew it. A riddle these days can't be that easy, can it?

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Post  vinni Thu Jan 03, 2013 11:57 am

aye lad, that be some good thinkin', but ye be forgettin' that the plank be restin' on top o' the stick, not suspended at the center

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Post  Kerlesh Thu Jan 03, 2013 12:07 pm

Then again, the riddle said we'd be moving it with using the stick and the board.

It never stated we can't lift the board with our hands on the other end makin it laying flat in the air.


Last edited by Kerlesh on Thu Jan 03, 2013 12:10 pm; edited 2 times in total

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Post  vinni Thu Jan 03, 2013 12:08 pm

yet it did lad, have yeself a looksee at the diagram up above

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Post  vinni Thu Jan 03, 2013 12:14 pm

falin' more precise variables, we be assuming perfect conditions and be focussin' on the provided setup
fo' the purposses o' this riddle, assume there be several sticks so it'll keep its balance

like so

_______\_/_______
OOOOOOOOOOOOOO

that'll keep the balance and give the same displacement as the ol' riddle be askin'

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Post  Kerlesh Thu Jan 03, 2013 12:27 pm

In that case it would be (dia x pi) as I allready thought before. 1 circumference.

If it would only be resting then it would matter how long the board would be. The shorter it would be, the more it would tilt the can to the right side while moving left. It would not be enough intel to get the riddle to work.

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Post  vinni Thu Jan 03, 2013 12:37 pm

Ye be right in thinkin' that the center o' the stick moves 9,42cm. However, ye be forgettin' that the board not be glidin' frictionlessly on top o' the sticks.

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Post  Varginnan Fri Jan 04, 2013 12:21 pm

I don't think we are meant to take variables into account that we don't have access to, or speculate about tilting and what not.

But then we are still stuck on just 9,42cm, which was so easy it's sort of hard to believe there is no catch indeed.

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Post  vinni Fri Jan 04, 2013 12:27 pm

remember lads, it's not a frictionless wheel, it be restin' on top of the rotatin' stick

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Post  Drooms Sat Jan 05, 2013 5:07 am

the can of water is still on the same place on the plank...., the plank moved....

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Post  vinni Sat Jan 05, 2013 5:13 am

aye

for the record, our frame o' reference be the giant collection of particles we refer to as 'earth'

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Post  vinni Sat Jan 05, 2013 6:49 am

try it out with a ruler an a pen or sumthin'
experimentation is the key to the ol' science!

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Post  Drooms Sat Jan 05, 2013 10:35 pm

uw verplaatsingsvector is de raaklijn aan de cirkel van de stok, dan heb je frictie nog waar je rekening mee moet houden, maarja vectors etc zit echt heel ver weg

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Post  vinni Sun Jan 06, 2013 12:48 am

ya don't need to be lookin' that far, just try it out and ye'll see

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Post  Yellowstar Sun Jan 06, 2013 3:13 am

9,42cm x 2 de stok rolt 9,42cm ver maar de plank erop rolt ook 9,42cm ten opzichte van de stok ( zoals vinni zei, try it out with a pencil)
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Post  vinni Sun Jan 06, 2013 3:16 am

FINALLY, someone be doin' the experiment!

18,85 cm it is! Very Happy

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Post  Varginnan Mon Jan 07, 2013 1:55 pm

I tried too and yes it seems correct. Damn it was hard to imagine without real life reference.

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