An archer lines up an arrow on the horizontal exactly dead center on a target. She releases the arrow, and it strikes the target a distance h=7.6cm below the center. If the target is 10m from the archer,
how long was the arrow in the air before striking the target?
What was the initial velocity of the arrow as it left the bow? Report your answers in meters per second, feet per second, and miles per hour. Neglect air resistance.