Which is the definition of suffix?

A suffix is a morpheme added at the end of a word. Examples are ation, -fy, -ing, -itis.

verb

a suffix is a morpheme added at the end of a word to form a derivative. e.g '-ly' is added to 'quick' to form 'quickly'

the boy's acceleration toward the girl is 2.08 m/s^2.

explanation:

according the newton's third law, the force causing the girl accelerate towards the boy will be me with equal counter-force causing the boy to accelerate towards the girl. these forces will be of equal magnitude and allows us to determine the boy's acceleration:

the boy's acceleration toward the girl is 2.08 m/s^2.