Due to gravity, an object falls 16t ^ 2 feet in seconds. You drop a backpack from a window that is 100 feet above the ground . Will the backpack hit the ground in 3 seconds?

Answer 1

-16t^2 + 100 = 0

16t^2 = 100

t^2 = 100/16

t = 10/4 = 2.5 seconds to hit ground. in 3 seconds, it will still be at ground level