I was holding a rubber band ball in my hand earlier and tossing it up in the air at about eye level. I noticed that I could see the shape of individual rubber bands on the axis of rotation on the outside of the ball but the edges of the ball were blurry. This got me thinking.. is a ball spinning slower near the axis than it is at the outer edge? Is the earth spinning faster at the equator than it is at the poles? If speed is d/t then the math makes sense to a layman like me that the ball would be rotating slower at the center and faster on the edges. Please help.
edit: holy shit. balls are fascinating.
In: 439
Yes. Every point in a ball’s surface (except for poles) goes around the axis making a circular orbit. The diameter of this circle is smaller closer to the axis and bigger further. Every point moves around with the same speed but the ones further has a longer route to do in the same time amount thus has to move faster than the closer ones.
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