this post was submitted on 10 Apr 2024
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He's still arguing that heavy objects would fall faster when dropped anywhere on Earth, though, specifically bringing up air resistance as the reason. His argument is that they would fall at the same rate in a vacuum.
But that's true, isn't it? Putting aside volume and shape.
He's close, but not quite there. Air resistance slows things, and in a vacuum all things will fall at the same rate, yes. But, weight has zero impact on the rate an object falls through the atmosphere. Air resistance affects things based on their shape and permeability. He's still saying that a heavier object will fall faster in atmosphere, all other things being equal, which is false.
He clearly knows air resistance is a thing, he just doesn't understand how it works.
Hi. Physicist here. You are absolutely wrong. The mass of an object does not affect the magnitude of force of air resistance which acts upon a falling object. But the acceleration that object will have is given by Newton's second law as Force divided by mass. So a heavy and a light ball with the same shape will experience the same air resistance, but the heavy ball will "care less" and thus fall faster.