No, I Just Want To Point That It Is Relative V Which Counts Here - an Astronomy Net God & Science Forum Message

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No, I Just Want To Point That It Is Relative V Which Counts Here

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Posted by Alexander on January 11, 2002 00:40:36 UTC

Asteroid may even move very sloly, but Earth hitting it with 30 km/s produces same effect as asteroid hitting non-moving Earth at 30 km/s.

And gravity of Earth adds some "oil into fire" making even slow stuff fall at least with escape velocity 11 km/s.

But of course, you are right that it does not make us more happy to learn that the rock is falling twice slower or twice faster - still the order of magnitude of its energy is devastating.

Follow Ups:

I should have said... - bruce - January 12, 2002 - 04:29 UTC

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