Respuesta :

It takes a ball about 0.45 seconds to drop 1 meter so for a ball to drop about 51 meters would take 22.95 seconds. Multiply 51 by 0.45. Hope this helps
Rounded the answer should be 6 seconds, because the gravity of earth accelerates objects at 9.8 meters per second, and then 51 divided by 9.8 is 5.21 rounded to get 6