system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: how airplanes slow down so quickly when landing (while already on runway)

after the plane's wheels have all touched down, the plane immediately begins to decelerate at a fairly rapid rate. at this time, passengers hear that sudden "woosh" sound come from the engines/wings.

what's happening on/in the plane to make that rapid deceleration  happen? and what exactly is that woosh sound?
gpt
Thrust reversers.  The structure of the plane's jet engines are reconfigured so that the jets are *reversing* the thrust.  In addition, the wings and flaps are in positions that generate a lot of drag.

This all slows the plane down really fast.