A ball is dropped from a height. If it takes `1 s` to cross the last `55 m` before hitting the ground, find the height from which it was dropped.

Explanation

To solve the problem of finding the height from which the ball was dropped, we can use the equations of motion under uniform acceleration due to gravity. Here are the steps to find the solution:

### Step 1: Understand the problem
The ball is dropped from a height and takes 1 second to cross the last 55 meters before hitting the ground. We need to find the total height from which it was dropped.

### Step 2: Use the equations of motion
We can use the second equation of motion:
\[ s = ut + \frac{1}{2} a t^2 \]
...