With two metal balls, one solid and one hollow, you could rule out the role of resistance?
Comment on yeah everything is probably made of like, idk, earth water, fire and air or something idrk
Zerush@lemmy.ml 22 hours ago
With same gravity constance everything fall down at the same speed, but only in a vacuum. In an atmosphere there count the air resistance of an object, even if they are made of the same material and weight, an iron sphere of 1 kg fall faster than a iron sheet of 1 kg.
KurtVonnegut@mander.xyz 19 hours ago
falcunculus@jlai.lu 18 hours ago
That’s clever, it would eliminate aerodynamism as a factor.
However results would still vary, because hollowing out the metal ball increases its buoyancy (see Archimedes’ principle).
heatofignition@lemmy.world 16 hours ago
They would have the same coefficient of drag, correct, but the air resistance would end up having more effect on the lighter mass of the hollow sphere, so it would be slightly slower to fall.
Archimedes principle here is accounted for in the different weights. Everything that you can put on a scale is already being acted on by Archimedes principle in air.
multifariace@lemmy.world 21 hours ago
That’s why Gallileo’s balls were so special.