ImperialFighter said:

Considering he was falling straight down, right in the middle of a very wide chasm...this 'vent' must have had an extraordinary amount of 'suction' to pull him in from so far away... Fair enough, but how come none of the other 'vents' in the wall that he already plunged past managed to 'suck him in' when he passed?... This particular one must have had 'turbo suction' I guess...

Why do the stormtroopers always miss? Why is there gravity in the meteor? Why does Leia make out with Luke?

All very good questions...