Inertia is a property of matter that describes its resistance to changes in motion. The mass of an object is directly proportional to its inertia, meaning that objects with greater mass have greater inertia. In this case, both the 1 kg of cotton and the 1 kg of iron have the same mass, so they also have the same inertia. This is because mass is the measure of the amount of matter in an object, regardless of the material it is made of.
1 kg of iron is heavier than 1 kg of cotton because the weight is determined by the mass of the object, not the material it is made of.
Both cotton and iron will weigh the same in a vacuum because weight is determined by the mass of an object and gravity. Each object weighs 1 kg in this scenario, regardless of the environment.
1 Kg of iron will hit the ground first. Although both the cotton and iron will experience the same acceleration because of their same masses, cotton will experience more air resistance due to its large size.
When we say that 1 kg of iron / cotton, we mean that it is the apparent weight. As they are already displacing air and by Archimedes' Principle they both are acted upon by the buoyant force directly proportional to the weight of air they displaced, and cotton displaces more air, therefore its actual weight is more than actual weight of iron.
I don't know what "appears heavier" means. A kilogram of mass is a kilogram of mass. Appearance has nothing to do with it. The cotton is (probably) less dense than the iron and will occupy a larger volume, but that doesn't have anything to do with the vacuum part.
1 kg of iron is heavier than 1 kg of cotton because the weight is determined by the mass of the object, not the material it is made of.
Both cotton and iron will weigh the same in a vacuum because weight is determined by the mass of an object and gravity. Each object weighs 1 kg in this scenario, regardless of the environment.
1 Kg of iron will hit the ground first. Although both the cotton and iron will experience the same acceleration because of their same masses, cotton will experience more air resistance due to its large size.
The weight of a body in air is its apparent weight because the body body remains immersed in air . Therefore apparent weight of 1kg cotton and one kg iron is same .But volume of 1 kg cotton is greater than the volume of 1 iron
When we say that 1 kg of iron / cotton, we mean that it is the apparent weight. As they are already displacing air and by Archimedes' Principle they both are acted upon by the buoyant force directly proportional to the weight of air they displaced, and cotton displaces more air, therefore its actual weight is more than actual weight of iron.
They both weigh the same, 1 kg
I don't know what "appears heavier" means. A kilogram of mass is a kilogram of mass. Appearance has nothing to do with it. The cotton is (probably) less dense than the iron and will occupy a larger volume, but that doesn't have anything to do with the vacuum part.
Both are as heavy as each other. however as iron is more dense, it would take up much less space.
Yes, the 2-kg iron brick has more inertia than the 1-kg block of wood. Inertia is directly proportional to mass, so an object with more mass has more resistance to changes in its state of motion.
iron bar first
If there was no wind resistance they would both hit the floor at the same time... however, and since such an atmosphere doesn't exist, (Wind resistance acting on cotton is greater because it has a greater surface area..) so iron will fall faster ... .
Since one Kg of iron is much more dense (the weight is concentrated in a smaller area) than cotton, it takes up less space.