Word problem

Question

A relief package is released from a helicopter at 1600 feet. The height of the package can be modeled by the equation:

h(t)=-16t^2+1600

where h is the height of the package in feet and t is the time in seconds. The pilot wants to know how long it will take for the package to hit the ground. Write the equation that you are trying to solve (hint - what would be the height, h(t), of a package ON THE GROUND?) then solve the equation using whichever method you are comfortable with.

Answer 1

-16t^2+1600=0

t^2= 1600/16=100

t=sqr100= 10 seconds to hit the ground