meteors and planet rotation

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meteors and planet rotation

Postby emilykate » Wed May 08, 2013 9:11 am

Can a meteor strike a planet with enough force to change the speed of its rotation?
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Project Question: I want to know if the speed of a planets rotation changes when it is hit by a meteor.
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Re: meteors and planet rotation

Postby k4gfwgerry » Wed May 15, 2013 6:06 pm

I would think it could if the meteor was big enough.
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Re: meteors and planet rotation

Postby Ray Trent » Thu May 23, 2013 4:02 pm

Better than that, *every* meteor changes the Earth's rotation, no matter how large or small the meteor is. Otherwise, there would be a violation of Conservation of Angular Momentum. The change is usually very small, and almost never noticeable, but it's always present.

See here: http://en.wikipedia.org/wiki/Angular_mo ... r_momentum
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