Alex is taking a creative writing class. in class, he learned that some writers make surprising, interesting, or amusing contradictions in their work. which literary device did he learn about?

understatement
allegory
symbolism
irony

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.