The detective gained useful information by following the trajectory of the bullet.
Beware the missile's trajectory.
The trajectory for this flying paper airplane is high.
Artillery rounds have a curved trajectory.
A sentence for trajectory: The detectives were determining the trajectory of the bullet.
You just did. The trajectory of the bullet was thrown off by the multiple nuclear blasts.
We calculated the trajectory of the cannonball before we fired it.
The trajectory of the baseball put it right through the neighbor's window.
A trajectory could also be described as an arc.
i do not know how to use embalming in a sentence. (there is the sentence)
The word trajectory is a noun. The plural form is trajectories.
it is not so much the hunting part where math is used but the shooting part, we use math for bullet trajectory or the figuring of the flight of the bullet to the point of impact
So- you are asking when to use 'when' in a sentence. When you are asking how to use when in a question, you are already using when in a sentence, because a question actually is a sentence. I like to use when in a sentence whenever I like.