Question

A quarter is dropped from a building and modeled by the equation h=-16t^2+1250. How long does it take to strike a 6 foot tall person?

Answer 1

You need to find what is t when h = 6.

Try.
6 = -16t^2 + 1250
1244 = 16t^2
77.75 = t^2
t = 8.818