Ok here we go this is going to take awhile but bear with me on this because it points out a really good physics question…
A couple of years ago I read a science fiction book and it talked about a new “engine” that could put a ship to millions of multiples of c (the speed of light) these ships used a gravitational shield to accelerate almost instantly… Basically you could really really fast… Now the story went on to say something about they were impossible to buy or get unless you were sometype of government or business or something due to the fact that a single ship using one could aim itself at a planet and with so much force behind it would literally blow the planet up… Mind you f=m*a Force = Mass * Acceleration now at first I took this as sounding good but for whatever reason I started thinking about this again… now hear is the part that bugs me about this now…
what about the atmosphere?
at first I thought well it would just zip right through it super fast and hit the planet and not burn up like a meteorite would…
but then I though about this… if you throw an egg into water it will just sink/float in whatever won’t break… but if you where to throw it as hard as you could with enough peed it would instantly explode on contact and barely get into the water…
Now I think the same is with the atmosphere, which contains a “sorta” tangible substance which is mixed gasses… space is a void with no air no nothing… I know when Nasa re-enters the ships have special burn things to keep them from destroying themselves and burning up and once they get in a little more they slow down to reach terminal velocity or whatever and are fine…
Now here is the question would the ship just zip through the atmosphere and blow up the earth? or would it hit a substance that is miles and miles deep so fast it would explode against the atmosphere hailing down pieces of itself like meteors… or would it be vaporized hitting the atmosphere… or would it argh punch a whole in our atmosphere vaporizing and LET OUT ALL OUR AIR
wow I love this…
I really think this is a good question…