“when i heard the ringmaster's whip splinter the air” what type of figurative language is this ?

simile/metaphor

In looking at this line, what we see is that the author is comparing the whip’s movement and sound to that of a piece of wood being shattered by manner of splintering.  The author is doing this so that readers, who may not have had any experience of seeing a ringmaster at a circus crack a whip, may have a good idea as to just how the whip may have sounded.  This is a common technique in literature and poetry called simile/metaphor. Technically, the air cannot be actually be splintered, thus, we know that this is figurative.

a. the scene is structured as a dialogue between two characters in their own informal language.

put the trash into the back of the truck and drive the truck to the back. then you must unload the truck.