which one is heavier 5 kg of metal or 5 kg of cotton ?

[Joel18]

Actually , If the masses of two different bodies are same and located in the same earth's surface, then weight of body also will be the same. Here, Both, 5 kg cotton and 5 kg iron have the same weight so the both will weigh the same, no one is heavier .

But there is one more explanation , 5 kg of metal is heavier than 5 kg of cotton. This is because the particles in metal are packed more closely together than the particles in cotton.

Explanation

Density: Iron is denser than cotton, meaning that the same volume of iron has more mass than the same volume of cotton.

Space: The same mass of cotton takes up more space than the same mass of iron.

Buoyant force: When weighed in air, cotton experiences a greater upward buoyant force than iron, so it may appear lighter on a scale.

So we can conclude that the question needs more detailing for a presise answer because the answer depends on provided conditions

 

[URum]

Food for thought

 

[Joel18]

Food for thought

Yes ik

 

[Dom55]

Actually , If the masses of two different bodies are same and located in the same earth's surface, then weight of body also will be the same. Here, Both, 5 kg cotton and 5 kg iron have the same weight so the both will weigh the same, no one is heavier .

But there is one more explanation , 5 kg of metal is heavier than 5 kg of cotton. This is because the particles in metal are packed more closely together than the particles in cotton.

Explanation

Density: Iron is denser than cotton, meaning that the same volume of iron has more mass than the same volume of cotton.

Space: The same mass of cotton takes up more space than the same mass of iron.

Buoyant force: When weighed in air, cotton experiences a greater upward buoyant force than iron, so it may appear lighter on a scale.

So we can conclude that the question needs more detailing for a presise answer because the answer depends on provided conditions

If the samples and their weights are examined in an airless weighing gadget (like in a vacuum), then:
There will be no buoyant force acting on either the iron or the cotton.

The gravitational force (weight) acting on both will be exactly the same since both have the same mass (5 kg) and experience the same acceleration due to gravity.

So, in a vacuum, both will weigh exactly the same, with no perceived difference in weight due to air resistance or buoyancy.
The only difference would remain in their density and volume, but not in their weight.