while jeff was replacing the obstruction of light on a cell tower, he accidentally dropped his cell phone. If he was 150 ft up at the time, approximately how long did it take the phone to reach the ground

3.19 seconds

Step-by-step explanation:

Given:

Phone gets dropped from a Height = 150 ft

To find:

Time taken for the phone to reach the ground = ?

Solution:

First of all, let us learn about the formula of distance in terms of Initial speed u; Time t and Acceleration a:

Here the phone is dropped from a height so a = g m/ i.e. acceleration due to gravity.

g = 9.8 m/

s = 150 ft

Initial velocity, u = 0

Putting all the values in the formula:

So, the time taken is 3.19 seconds.

450 is the final answer! : )

only 10/60 isn't equivalent

hope this : )