¿Qué aplicaciones prácticas tiene el lanzamiento de proyectiles, en el deporte, en el transporte u otro sector?

i guess that visual aids present persuasive examples to what you are presenting, some factors would be theme (does it fit with the color, information, what you are presenting), size (can you see it, is it a big enough span of data/information), and overall look of the visual aid.

hope this : )

the entire statement is true and correct.  

there's no diagram, nothing is illustrated, and no question is asked.

truck y has a greater velocity than truck x.