Respuesta :
No. The ball would not end up 60 meters away. The ball will end up 65 meters away because of the force thrown with the ball. I believe I'm right.
Ignoring air resistance . . .
-- A ball starting from 55 meters off the ground takes 3.35 seconds to hit the ground.
-- If it's moving horizontally at 20 m/s, then in 3.35 seconds it gets
(20 m/s) x (3.35 sec) = 67 meters away from the building.