1. The problem statement, all variables and given/known data An arrow is shot straight up in the air with an initial speed of 220 ft/s. If on striking the ground it embeds itself 8.00 in into the ground, find the magnitude of the acceleration (assumed constant) required to stop the arrow, in units of feet/second^2. 2. Relevant equations 4 basic kinematic equations. 3. The attempt at a solution Does anyone see where I went wrong in my work?