V=22.4m/s Hows a rock down with speed 11 m/s from the top of a 25-m tower. If g = 9.8 m/s* and af resistance is negligible, what is the rock's speed just as it hits the ground a. 19 m/s (b) 25 m/s a = 9.8 m/s? V? - Vo²tzgry c. 610 m/s y = 2 - 100/5= vi VE 11 +219.8) (25) Ve= d. 22 m/s TV²=811+4,90 e. 12 m/s OS 7. Mt. Everest is more than 8 000 m high. How fast would an object be moving if it could free fall to sea level after being released from an 8 000-m elevation? (Ignore air resistance.) a. 396 m/s b. 120 m/s c. 1 200 m/s d. 12 000 m/s