An archer lines up an arrow on the horizontal exactly dead center on a target as drawn i...

An archer lines up an arrow on the horizontal exactly dead center on a target as drawn in Figure P4.28. She releases the arrow, and it strikes the target a distance h = 7.6 cm below the center. If the target is 10 m from the archer, (a) how long was the arrow in the air before striking the target? (b) What was the initial velocity of the arrow as it left the bow? Neglect air drag.