Question

an archer defending a castle is on an 15.5 m high wall. he shoots an arrow straight down at 22.8 m/s


I know this is an easier question but it won’t take the right answer can someone help????

Answer 1

using the "free fall" equation ... h = -1/2 g t^2 + vo t + ho

0 = -1/2 * 9.81 * t^2 - 15.5 t + 22.8

use the quadratic formula to find t ... time for arrow to reach the ground
... 1.09 s

sometimes answers aren't taken due to sig fig problems