ballistics vs ballistic trajectory

ballistics and ballistic trajectory both are nouns.

Word	Noun	Adjective	Verb	Adverb
ballistics	Yes	No	No	No
ballistic trajectory	Yes	No	No	No

As nouns, ballistics and ballistic trajectory are synonyms defined as:

ballistics and ballistic trajectory: the trajectory of an object in free flight

ballistics (noun)	ballistic trajectory (noun)
the science of flight dynamics	the trajectory of an object in free flight
the trajectory of an object in free flight