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Is Earth's velocity/acceleration constant?

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posted on Nov, 13 2008 @ 11:22 AM
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Originally posted by Amorymeltzer
The acceleration of Earth is inward, toward the Sun



Wrong - inertia makes Earth want to go away from the sun. Gravity is what stops this happening.




posted on Nov, 14 2008 @ 12:43 AM
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Originally posted by dave420
reply to post by Icarus Rising
 


As the Earth is in an orbit, its velocity can not be constant. And even if all orbits were perfectly round, because our Sun is itself orbiting the centre of the Milky Way, our acceleration couldn't be constant.

But as for you feeling it, I'd be seriously doubtful, as the differences are drowned out by us being so close to the Earth. The Earth's gravitational pull on us is far greater than the Sun's.

If it wasn't, we'd all be shooting off towards the Sun


We're in freefall with regards to the sun anyway, so there's no way we'd feel it even if the earth wasn't there.



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