Re: Comet deflection

From: Jim Yanik (jyanik_at_kua.net)
Date: 07/20/04 

To: sci-military-moderated@moderators.isc.org
Date: Tue, 20 Jul 2004 14:37:30 +0000 (UTC)

"Carl Alex Friis Nielsen" <cafn@get2net.dk> wrote in
news:zGrKc.34$p_1.9@news.get2net.dk:

> Juergen Nieveler skrev i meddelelsen ...
>
>>The energy transferred would still be about the same, though...
>
> A 0,01 kg projectile moving at 300 m/s has a kinetic energy of 450 J
> A 10 kg projectile with a kinetic energy of 450 J moves at 0,3 m/s
>
> If both projectiles transfer their entire energy to your body, do you
> then have a preference for which you prefer to be hit by ?
>
> While you could be hurt by the 10 kg projectile you could probably
> catch it unhurt if you were aware it was coming.
>
> kinetic energy = 0,5 * mass * velocity ^ 2
>
> --------------------------------------
> Carl Alex Friis Nielsen
>
> Love Me - take me as I think I am
>

It's not the energy from the impact,it's the aftereffects like tidal
waves,shock waves,debris tossed into the air,blocking sunlight. 

-- 
Jim Yanik
jyanik-at-kua.net