Answer:
4
Explanation:
Given : A ball is dropped from a treetop 256 feet above the ground.
Formula:

To Find :Time taken to hit the ground
Solution
formula given:

s denotes the total distance
t denotes the total time
Since we are given that ball is dropped from a treetop 256 feet above the ground i.e. s = 256
put value s in the formula to find value of t(total time taken to hit the ground.

⇒

⇒

⇒
![\sqrt[2]{16} = t](https://img.qammunity.org/2017/formulas/mathematics/high-school/3knd3jm8c91zd5s48debdmp0xh1e33ixw5.png)
⇒

Thus, Total time taken to hit the ground is 4