Question

Robby and his friend, Sal, are at the top of a lookout tower. Sal dares Robby to drop one of his favorite pair of Jordan's from the top of the 250-foot platform. The height h of the shoe in feet after t seconds is modeled by the function h(t)=-16^2+250. How long will it take, in seconds, for the shoe to reach the ground?

Answer 1

When it will hit the ground then height is 0
h(t)=-16^2+250
-16^2+250=0
16t^2=250
t^2=250/16
t=3.95 seconds

i hope this is right