elitesnautica Posted September 23 Report Share Posted September 23 1) What is the difference between Mass and Weight?2) What is the U.S. unit for Mass?3) Convert 100 kg to lbs.Nautica Quote Link to comment Share on other sites More sharing options...
hroark Posted September 23 Report Share Posted September 23 1 - mass is a function of weight and volume2 - M? as in the formula E=MC2 (guessing)3 - 220 Quote Link to comment Share on other sites More sharing options...
elitesnautica Posted September 23 Author Report Share Posted September 23 Originally posted by hroark 1 - mass is a function of weight and volume2 - M? as in the formula E=MC2 (guessing)3 - 220 1) Sort of 2) No3) Not even close. (even though you probably found that in a conversion chart)Nautica Quote Link to comment Share on other sites More sharing options...
hroark Posted September 23 Report Share Posted September 23 well, i always thought a kg was 2.2 lbs... Quote Link to comment Share on other sites More sharing options...
elitesnautica Posted September 23 Author Report Share Posted September 23 Originally posted by hroark well, i always thought a kg was 2.2 lbs... That is what most books or tables will tell you but that is absolutely wrong.Nautica Quote Link to comment Share on other sites More sharing options...
nSyNcBaBy Posted September 23 Report Share Posted September 23 Originally posted by elitesnautica That is what most books or tables will tell you but that is absolutely wrong.Nautica what is it then? cuz thats what ive been believing... Quote Link to comment Share on other sites More sharing options...
elitesnautica Posted September 23 Author Report Share Posted September 23 I'll give it a couple of more days to see if anyone can figure it out. Then I will post the answers.In case anybody is wondering what this has to do with fitness. Conversion are made everyday betweent he US and metric system - when dealing with training.Nautica Quote Link to comment Share on other sites More sharing options...
wideskies Posted September 23 Report Share Posted September 23 mass is the amount of matter in an object. it's measured in grams, mg, etc. weight is the measure of gravity's effects on mass. your mass stays the same whether you're on the earth or the moon, but your weight changes because gravity changes.2.2 lbs per kg was always the 'standard' conversion i learned. Quote Link to comment Share on other sites More sharing options...
kaydup Posted September 23 Report Share Posted September 23 Originally posted by elitesnautica 1) What is the difference between Mass and Weight?2) What is the U.S. unit for Mass?3) Convert 100 kg to lbs.Nautica 3. dont u just multiply by 2.22. Avoiurdupoiss(sp?) systemthat's all I got and can remeber Quote Link to comment Share on other sites More sharing options...
shroomy Posted September 23 Report Share Posted September 23 OK... been a long time but....1) Mass... basically the quantity of matter... the same no matter what the gravity is. Weight is basically the pressure from the force of gravity.2) There are many units of mass for us (the avoirdupois system is all of them kaydup like the metric system.. btw yes I had to look up spelling ) common is pound (or pound-mass technically) slug or ounce (not fluid ounce which is volume)3) 100 kg = 45 pounds (100 / 2.2)... you guys were just doing it backwards and of course Im rounding. And of course we are kind of going from mass to weight, so making the assumtion of constant and average earth gravity. Quote Link to comment Share on other sites More sharing options...
incredulous Posted September 24 Report Share Posted September 24 i think hroark was right about the 3rd one Quote Link to comment Share on other sites More sharing options...
elitesnautica Posted September 24 Author Report Share Posted September 24 Everybody is understands the difference between weight and mass.But you need to really think about how mass can be converted to a weight - given what has been stated in this thread.I will give the answers in the morning.Nautica Quote Link to comment Share on other sites More sharing options...
elitesnautica Posted September 24 Author Report Share Posted September 24 Originally posted by elitesnautica 1) What is the difference between Mass and Weight?2) What is the U.S. unit for Mass?3) Convert 100 kg to lbs.Nautica 1) Looks like everybody knew the difference between mass and weight.Mass is basically reistance to inertia - it is a constant.Weight is a force and changes with mass and/or acceralation.2) Slugs is the U.S. unit for mass. Lbs is a measure of weight or force - so why do we use it. B/c slugs just sounds nasty but our system is so much better than the metric - we are not about to switch.3) Coversion from Kg to lbs. Yes 2.2 is used but that is not actually correct.Mass can NOT be converted to Weight (force). That is like converting feet to pounds.Force=Weight, soWeight=Mass x accelerationWeigth on earth = Mass (kg or Slugs) x 9.8 m/s^2Weight is measured in LBS in the US or in Newtons. It is not measured in Kg or Slugs - therefore the two can NOT ever be equal to each other. If Weight could equal mass then weight could also equal acceleration - and we know that is not possible.Nautica Quote Link to comment Share on other sites More sharing options...
fineones Posted September 24 Report Share Posted September 24 yeh thank god i didnt put my answers up ...i wasnt 3even close on the third one..but 2 out of 3 isnt bad Quote Link to comment Share on other sites More sharing options...
shroomy Posted September 24 Report Share Posted September 24 hey.. I was close enough for partial credit right? Quote Link to comment Share on other sites More sharing options...
elitesnautica Posted September 24 Author Report Share Posted September 24 You know enough about clubdrug chemistry to make up for what you lack in physics. Nautica Quote Link to comment Share on other sites More sharing options...
t0nythelover Posted September 28 Report Share Posted September 28 Originally posted by elitesnautica 1) What is the difference between Mass and Weight?2) What is the U.S. unit for Mass?3) Convert 100 kg to lbs.Nautica 1- mass is the amount of matter in something, weight is how the matter is effected by gravity thats why weight changes on the moon but not gravity.2-us unit for mass is the pound3-1 kg=2.2 lbs so 100kg=approx 44lbs i guess Quote Link to comment Share on other sites More sharing options...
elitesnautica Posted September 28 Author Report Share Posted September 28 Originally posted by t0nythelover 1- mass is the amount of matter in something, weight is how the matter is effected by gravity thats why weight changes on the moon but not gravity.2-us unit for mass is the pound3-1 kg=2.2 lbs so 100kg=approx 44lbs i guess Too late tony i already answered it.1) Looks like everybody knew the difference between mass and weight.Mass is basically reistance to inertia - it is a constant.Weight is a force and changes with mass and/or acceralation.2) Slugs is the U.S. unit for mass. Lbs is a measure of weight or force - so why do we use it. B/c slugs just sounds nasty but our system is so much better than the metric - we are not about to switch.3) Coversion from Kg to lbs. Yes 2.2 is used but that is not actually correct.Mass can NOT be converted to Weight (force). That is like converting feet to pounds.Force=Weight, soWeight=Mass x accelerationWeigth on earth = Mass (kg or Slugs) x 9.8 m/s^2Weight is measured in LBS in the US or in Newtons. It is not measured in Kg or Slugs - therefore the two can NOT ever be equal to each other. If Weight could equal mass then weight could also equal acceleration - and we know that is not possible.Nautica Quote Link to comment Share on other sites More sharing options...
anotherway83 Posted September 28 Report Share Posted September 28 in terms of physics, mass is a scalar quantity, weight is a vector quantity, and a scalar can never be equal to a vector Quote Link to comment Share on other sites More sharing options...
elitesnautica Posted September 28 Author Report Share Posted September 28 Originally posted by anotherway83 in terms of physics, mass is a scalar quantity, weight is a vector quantity, and a scalar can never be equal to a vector Exactly Quote Link to comment Share on other sites More sharing options...
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