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who is cleverest of u all

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the riddler
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PostPosted: 15:03 - 20 Sep 2002    Post subject: who is cleverest of u all Reply with quote
a boat is carrying a mass , it is floating on water in a water tank the load is taken of the boat and placed in the water will the level of the water go up or down
give reasons for your answer
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Demonic69
The Pink Rhino



Joined: 31 May 2002
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PostPosted: 15:18 - 20 Sep 2002    Post subject: Reply with quote
Should stay the same? Same masses in the water, same amount of displacement?
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minesweeper
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Joined: 03 Feb 2002
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PostPosted: 15:20 - 20 Sep 2002    Post subject: Reply with quote
The water level would go up, but it would all be based on surface area mate, the boat would be distributing the weight of the load across its hull due to gravity, If the mass was like 100lbs but it covered 6 square miles the water level would rise Rolling Eyes

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tanner18
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Joined: 13 May 2002
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PostPosted: 15:33 - 20 Sep 2002    Post subject: Reply with quote
i would have thought the level would go down, the weight could be a small lead weight. the weight occupies very little space in the water very slight vlolume, but when the weight is on the boat it is pushing the boat further into the water.
conclusion when the weight is removed the boat floats alot higher mean9ing less of the boat is in the water. thus making the water level fall and the weight would make a minimal amount of difference.
I stand to be corrected.
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McJamweasel
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Joined: 22 Mar 2002
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PostPosted: 15:38 - 20 Sep 2002    Post subject: Reply with quote
It would depend on the size/shape of the boat and the size and wieght of the mass.

All of the above answers *could* be correct.
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tanner18
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PostPosted: 15:39 - 20 Sep 2002    Post subject: Reply with quote
its a bit of a trick question
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McJamweasel
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Joined: 22 Mar 2002
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PostPosted: 15:57 - 20 Sep 2002    Post subject: Reply with quote
We're also assuming that the weight will sink. Depending on its shape it may do.

So, mr riddler. It seems as though we are cleverer than you.
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G
The Voice of Reason



Joined: 02 Feb 2002
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PostPosted: 15:59 - 20 Sep 2002    Post subject: Reply with quote
'tis a bit ambiguous

we want details of this 'mass'

NOW, godamnit Very Happy
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McJamweasel
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Joined: 22 Mar 2002
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PostPosted: 16:02 - 20 Sep 2002    Post subject: Reply with quote
G wrote:
we want details of this 'mass'


...and the boat.
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podgester
Mister Cumshot



Joined: 15 May 2002
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PostPosted: 16:08 - 20 Sep 2002    Post subject: Reply with quote
i would say tanner is correct on that one, but i wouldnt know.......im a dumbass Laughing
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MarsBar
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Joined: 21 Aug 2002
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PostPosted: 16:12 - 20 Sep 2002    Post subject: Reply with quote
and if the mass sinks or floats? Rolling Eyes

The mass could be a roll of bubble wrap or a tonne of lead. Cool
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G
The Voice of Reason



Joined: 02 Feb 2002
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PostPosted: 16:14 - 20 Sep 2002    Post subject: Reply with quote
exactly

details! details!
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McJamweasel
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Joined: 22 Mar 2002
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PostPosted: 16:35 - 20 Sep 2002    Post subject: Reply with quote
MarsBar wrote:
and if the mass sinks or floats?


Er....mars bar. Aint that what I said??

McJamweasel wrote:
We're also assuming that the weight will sink. Depending on its shape it may do.


And as for the tonne of lead - what if its a boat shaped tonne of lead. I think you will find that liners etc weigh considerably more than a tonne yet still float.
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Major_Grooves
The Doctor



Joined: 10 May 2002
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PostPosted: 16:37 - 20 Sep 2002    Post subject: Reply with quote
I'd say the water level stays the same.
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McJamweasel
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Joined: 22 Mar 2002
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PostPosted: 16:41 - 20 Sep 2002    Post subject: Re: who is cleverest of u all Reply with quote
the riddler wrote:
give reasons for your answer


Rolling Eyes
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MarsBar
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Joined: 21 Aug 2002
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PostPosted: 16:47 - 20 Sep 2002    Post subject: Reply with quote
McJamweasel wrote:
MarsBar wrote:
and if the mass sinks or floats?


Er....mars bar. Aint that what I said??

We're also assuming that the weight will sink.


Never mind that!! Also.....

McJamweasel wrote:
[I think you will find that liners etc weigh considerably more than a tonne yet still float.


What if it was a model boat made out of polystyrene and it was carrying 60,000 tonnes of lead and just sunk anyway.

Or... What if it was a liner carrying 10 helium filled balloons?

Laughing Laughing Laughing Laughing Laughing Laughing Laughing Laughing Laughing Laughing Laughing Laughing Laughing Crying or Very sad Crying or Very sad
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Major_Grooves
The Doctor



Joined: 10 May 2002
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PostPosted: 16:47 - 20 Sep 2002    Post subject: Reply with quote
If the boat is in the water, then it displaces some water. When you add a weight it will also displace the weight's mass of water. When you add the weight to the water then it will displace the same mass of water, that it did when it was in the boat.
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McJamweasel
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Joined: 22 Mar 2002
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PostPosted: 16:57 - 20 Sep 2002    Post subject: Reply with quote
MarsBar wrote:
What if it was a model boat made out of polystyrene and it was carrying 60,000 tonnes of lead and just sunk anyway.

Or... What if it was a liner carrying 10 helium filled balloons?


It wouldnt matter what the boat was made from as long as it was strong enuff to hold the weight. Its the size/shape of the boat that matters, as I said earlier.
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MarsBar
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Joined: 21 Aug 2002
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PostPosted: 17:05 - 20 Sep 2002    Post subject: Reply with quote
McJamweasel wrote:
It wouldnt matter what the boat was made from as long as it was strong enuff to hold the weight. Its the size/shape of the boat that matters, as I said earlier.


It does matter, because if you had two boats exactly the same size. One made out of polystyrene and one made from steel. The one made from steel would be heavier and would make the water rise higher than if you used the polystyrene boat. Rolling Eyes

I won't be out intellegented on this one!! Laughing
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Guest
PostPosted: 17:06 - 20 Sep 2002    Post subject: Reply with quote
displacement is proportional to the whether the density of the mass is enough to sink fully under the waters surface, if so the water level will rise the same mount a the volume of the mass, how eve heavy the mass maybe, the differerce that the ship makes when it rises in the water (not the water level drops) will make little difference to ythe over all dipace ment, unless it extremely large and light beforhand. So i believe tat the water level will rise.
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kevo
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Joined: 26 Aug 2002
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PostPosted: 17:23 - 20 Sep 2002    Post subject: Re: who is cleverest of u all Reply with quote
the riddler wrote:
a boat is carrying a mass , it is floating on water in a water tank the load is taken of the boat and placed in the water will the level of the water go up or down
give reasons for your answer



It will do neither, because unless you define the size and weight of the item it could go either way.

The item could be very heavy but small in size, lead for example. This extra weight would lower the boat further into the water thus raising the water level.

However placing a heavy small object into the water itself would take up less space than the sunken boat hull.

The question has no answer that can be defined without further information on the items weight and physical dimensions Smile

Kevo.
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G1_
World Chat Champion



Joined: 27 May 2002
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PostPosted: 17:31 - 20 Sep 2002    Post subject: Reply with quote
i have to say this would be a sucky riddle if the above was the answer... Confused
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Bendy
Mrs Sensible



Joined: 10 Jun 2002
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PostPosted: 17:35 - 20 Sep 2002    Post subject: Reply with quote
i bet it's goose in disguise with one of his Navy questions Laughing
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Guest
PostPosted: 17:41 - 20 Sep 2002    Post subject: Re: who is cleverest of u all Reply with quote
kevo wrote:



It will do neither, because unless you define the size and weight of the item it could go either way.

The item could be very heavy but small in size, lead for example. This extra weight would lower the boat further into the water thus raising the water level.

However placing a heavy small object into the water itself would take up less space than the sunken boat hull.

The question has no answer that can be defined without further information on the items weight and physical dimensions Smile

Kevo.


i agree with you this is a unanswerabl question with those peramiters
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Zimma
Wheelie Junkie



Joined: 04 Feb 2002
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PostPosted: 11:39 - 21 Sep 2002    Post subject: Reply with quote
EvilBendy wrote:
i bet it's goose in disguise with one of his Navy questions Laughing


/me goes along with bend Laughing

c'mon goose own up Very Happy
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