Can someone who is smarter than myself, confirm or deny that inertia is responsible for the movement of the feathers as they are released @2:50? From the comments, this question arose and there wasnt a clear answer, with a lot of doubt that inertia would do this. I think it would, but what do I know? I have zero qualifications to say anything beyond mere interest really. I could be totally wrong. It seems to me that the feathers being a non uniform material (they have slight variations along the fibers, thicker, thinner, more or less densely packed areas), are being acted upon by inertia in an equally non uniform manner from the sudden acceleration of the central mass & heaviest portion of the feathers, the shaft. It is my understanding that the mass ratio of the feather and ball are insignificant enough in relation to the Earths gravity, to have almost no measurable disparity in their rate of fall; thus no disparity in the feathers rate of motion in relation to themselves. So the difference in gravity from shaft to feather tips, wouldnt cause the disturbance, they should fall motionless in a vaccum without another force acting on them. The inertia of sudden motion is the extra force being applied here, this would cause a mild disturbance; exactly this kind of mild disturbance. At least it seems that way to my amateur at physics mind. I really have no idea what the hell Im talking about lol. Thanks for any help!
Posted on: Tue, 04 Nov 2014 17:59:17 +0000
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