Given:
Height of 900ft above a stranded hiker and

To Find:
how many seconds it takes for the package to reach the hiker.
Step-by-step explanation:
It is given that, height, h = 900 ft
Simply substitute h = 900 in the given formula, to calculate the time takes for the package to reach the hiker.

Final Answer:
Hence, the time taken for the packages to reach the hiker is 7.5 seconds.