2007-02-05 04:46:28 · 6 answers · asked by Chandresh 1 in Science & Mathematics ➔ Physics
If the measurement it is made in vacuum,than they are equal.In air measured,1kg.cotton it is heavier than 1kg.iron,due to Arhimede-s law.
2007-02-05 04:57:49 · answer #1 · answered by Leonard B 2 · 2⤊ 1⤋
"Heavier" is the notion that is directly related to "weight". The heavier the object, the larger is weight. The formal definition of weight is the force applied by the object on its support, which keeps it steady (e.g. is the object is hung from a rope, that would be the stretching force in the rope; or, if it's lying on the table, that would be the compression of the table).
As one of the responders have remarked, the objects are probably not in vacuum but in room conditions (you should comment on this). In this case, there will be buoyancy due the presence of the air. Because of vastly different densities, cotton (cellulose) and iron, - will displace different amounts of air. The piece of cotton will experience more lift, due to a higher volume. Therefore, its weight will be less. We have no choice but to conclude that 1kg of iron is heavier.
2007-02-05 05:56:25 · answer #2 · answered by stopwar11112 3 · 0⤊ 1⤋
No way dude... always 1 kg = 1kg .. :) ..
but if you fluff the cotton out it may weigh more due to trapped air...
2007-02-05 04:55:04 · answer #3 · answered by Krissshh!!! 4 · 0⤊ 1⤋
No weight is the same. Now density--that's another story!
2007-02-05 04:50:59 · answer #4 · answered by bandit 6 · 0⤊ 1⤋
no they both weigh 1kg.
2007-02-05 04:56:13 · answer #5 · answered by Anonymous · 0⤊ 1⤋
lol
2007-02-05 04:50:56 · answer #6 · answered by Anonymous · 0⤊ 1⤋