Actually, my understanding is than anything than moves has kinetic energy (since that is the definition of kintetic, after all). The cannon eliminates it, stopping the vehicle in its tracks (we can take for granted than there are size limits, of course; no stopping moons)
That's when the drive enters in the ecuation: The ship has stopped, but it still has engines, presumably running, so it only has a few seconds (dependin ot the drive eficiency) before the enemy ship is moving again. Remember than purely waved weapons do not like to actually hurt, so the ship is intact, except for some soot covering it. Well, until 700 tons of batle armor crash into its hull, of course.
Things with no drive -like a small asteroid- would stop completely, and would remain there for a much longer time until solar gravity made it start orbiting again.
That's when the drive enters in the ecuation: The ship has stopped, but it still has engines, presumably running, so it only has a few seconds (dependin ot the drive eficiency) before the enemy ship is moving again. Remember than purely waved weapons do not like to actually hurt, so the ship is intact, except for some soot covering it. Well, until 700 tons of batle armor crash into its hull, of course.
Things with no drive -like a small asteroid- would stop completely, and would remain there for a much longer time until solar gravity made it start orbiting again.