If you could have 50lbs of anything, what would you have?

Nabobalis said:
MY GCSE physics book says that mass can be measured in kg etc and that weight is in newtons as weight is a force.

For example "What is the weight, in Newtons, of a 5kg mass, on earth?"
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right, but gravity is the force that is acting on an object with mass which creates a weight, that's why on earth we have weight, but in space there is not weigth, only mass
 
Im sorry but Weight is in Newtons, N. It can only be in newtons and the thread title says lbs which is a mass... :p. Look you could argue all night but if im wrong ive failed my A level physics course ;)
 
I didn't realise IBL was back, I said it a few times before to try and be retro (I also bought a yo-yo and tried to get them popular in school again, guess I try to be a trendsetter) and I saw a few people saying it. Not like its an epidemic yet...

To put it on topic; 50lbs of IBL. ;)
 
iyfyoufhl said:
"how much do you WEIGHT?" "50lb", no it's weight
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That was what my response was to. Not to sure I was supposed to take that as the truth. Even though 50lb is a mass, why is it used as measure of how much you weigh when that should be in newtons? Or am I getting this all wrong?
 
Fat Tony! said:
Im sorry but Weight is in Newtons, N. It can only be in newtons and the thread title says lbs which is a mass... :p. Look you could argue all night but if im wrong ive failed my A level physics course ;)
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so why the hell when some one asks your weight you don't tell them 50N but 50lb?

actually we all right, and i was right about mass*gravity=weight, and weight is also measureed in lb too

here>>>http://www.encyclopedia.com/html/w1/weight-phys.asp
 
iyfyoufhl said:
so why the hell when some one asks your weight you don't tell them 50N but 50lb?
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How many people remember what a Newton is in their later life, unless if they are a scientist? Or could be that it was referred to as a weight until it was proved that 50lb is a mass not a weight. But people couldn't be bothered to change. Plus people would be shocked if the scale said 600 newtons.
 
It's a standard misconception, but in truth it's in newtons but it's a bit dodgy for normal domestic use...ok thats bollocks im not sure why in normal everyday life it's like that but the point is it is a mass...so there :p

edit-:
and weight is also measureed in lb too
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Noes! :p your wrong, look just trust me ok :D. If it were in space it would be the same value...
 
Fat Tony! said:
Noes! :p your wrong, look just trust me ok :D. If it were in space it would be the same value...
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ecyclopeia said:
"The distinction between weight and mass is further confused by the use of the same units to measure both—the pound, the gram, or the kilogram. One pound of weight, or force, is the force necessary at a given location to accelerate a one-pound mass at a rate equal to the acceleration of gravity at that location (about 32 ft per sec per sec). "
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there you go
 
there you go
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Your dictionary sucks ;).

http://ourworld.compuserve.com/homepages/Gene_Nygaard/weight.htm

"In commercial and everyday use, and especially in common parlance, weight is usually used as a synonym for mass.
-- NIST"

"A common meaning of "weight" is "mass."

This is the way the question is often phrased. But it is misleading.

The original meaning of "weight," still in general use today, is equivalent to mass. But a definition common in physics uses "weight" for a particular kind of force,"

Mass is a force and force= mass*accelleration
So you can't have a unit which is both a force and a mass it's impossible

edit- Units of "weight" in some of the various systems
SI ft lbm lbf s ft lbm pdl s ft slug lbf s cgs
mass kilogram pound pound slug gram
force newton pound poundal pound dyne

Grr stupid old systems, use kilograms in the future it appears that the old system doesn't obey the laws of physics :D. We really should stop using these things, ok well in that case we have to ask whether this is a pound of mass or pound of...force :p as a physics student this drives me crazy it's scientificly incorrect, kill me now :p
 
How many Newtons make 1 kgf?

was it 9.7 or something? i forgot.
 
Fat Tony! said:
Mass is a force and force= mass*accelleration
So you can't have a unit which is both a force and a mass it's impossible

edit- Units of "weight" in some of the various systems
SI ft lbm lbf s ft lbm pdl s ft slug lbf s cgs
mass kilogram pound pound slug gram
force newton pound poundal pound dyne

P
Click to expand...
mass is not a force

"force=mass*accelleration"-wrong
"weight=mass*accelleration(gravity)"-right, and exactly what i said before

biach
 
50 pounds of antimatter was my original idea, but seeing as that's been taken....

I'd have to say 50 pounds of lightsabers.
 
50 pounds of Anthraxx!

No wait...

50 pounds of the flu virus!

Or how about...

50 pounds of plankton.
 
Raziaar said:
50 pounds of Anthraxx!

No wait...

50 pounds of the flu virus!

Or how about...

50 pounds of plankton.
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23kg of smallpox in a sealed jar!
 
50 pounds of sexay!
YEAH!

No wait, I dont really need that...


I choose...50 pounds of regenerating chocolate!
Waslam!
 
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