Timeline for Why is meteor speed what it appears to be?
Current License: CC BY-SA 3.0
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| Jan 29, 2016 at 23:44 | history | edited | Floris | CC BY-SA 3.0 |
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| Jan 29, 2016 at 22:13 | comment | added | ProfRob | Min velocity of a meteor is 11 km/s not 16. @JamesLarge This occurs when the meteor is in almost the same orbit as Earth to begin with. It is similar to the escape velocity of the Earth because gravity goes as $1/r^2$ and the Sun doesn't come into it, just think of it in the frame of reference of theEarth. | |
| Jan 29, 2016 at 19:58 | comment | added | Floris | @jameslarge - you make a fair point. I have updated my answer accordingly. | |
| Jan 29, 2016 at 18:00 | history | edited | Floris | CC BY-SA 3.0 |
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| Jan 29, 2016 at 17:41 | comment | added | Solomon Slow | 11 km/s sounds suspiciously like Earth's escape velocity. I.e., that's how fast the meteor would impact the Earth if it and the Earth were the only two bodies in the Universe. Not necessarily the same as if the rock were falling toward the Sun, and the Earth happened to get in the way. | |
| Jan 29, 2016 at 16:03 | history | answered | Floris | CC BY-SA 3.0 |