Why harpagus didn't want to kill newly born baby of mandane?

In the Histories of Herodotus, the Greek historian, Harpagus was the general in the army of the Median king, Astyages.

King Astyages has a dream that his daughter, Mandane’s child would become the king of Media after overthrowing him. When a son is born to Mandane and Cambyses I, Astyages orders Harpagus to kill the child. Not wanting to kill the royal child, he gives the child to a shepherd, who brings him up as his son.

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.

idk

explanation: