What does trajectory mean?

Trajectory means the path that something follows.

It's almost always used to describe things that are dropped, thrown, or shot,
like the trajectory of baseballs, golf balls, and canon balls, or other things moving
under the influence of gravity, like comets, asteroids, and planets.  But it doesn't
have to be the path of something sailing overhead from one place to another.
You'll also hear about a person's 'trajectory through life'.

The objects do not reach terminal velocity         there is not enough time from the time the object falls from when it hits the ground to achieve terminal velocity. an object must be placed higher to achieve terminal velocity in order to be in free fall.