this post was submitted on 18 Sep 2025
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Science Memes

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[–] psud@aussie.zone -2 points 1 week ago* (last edited 1 week ago) (3 children)

minus drag

On Earth, this is the part that makes it so that objects do not fall at the same speed.

That is incorrect. Drag affects both equally. The difference is caused by buoyancy, less dense objects feel more buoyancy

[–] missingno@fedia.io 7 points 1 week ago

If F is the same but m is different, what happens to a?

[–] Rivalarrival@lemmy.today 5 points 1 week ago (1 children)

Buoyancy is functionally irrelevant here. Buoyancy in air effectively subtracts 1.3kg per cubic meter of each substance: The mass of the volume of air displaced by the object.

The part you are not understanding: Drag applies the same force to both objects. Gravity applies the same acceleration to each object.

[–] psud@aussie.zone 2 points 1 week ago

Thanks that does make sense

[–] ColeSloth@discuss.tchncs.de 1 points 1 week ago

Drag doesn't exist in a vacuum.