Then that comes under the newtonian model that explains space flight.
Of course I think everyone here is missing THE VERY IMPORTANT ASPECT of momentum. The Earth is moving, yes, but so is the Moon, the Sun, in fact all the stars in the Milky Way, not to mention Andromeda is on a collision course with us, and of course Hubble's mess of galactic objects accelerating away ...
... this thingumajig (I prefer to British spelling) might cause a catastrophe!