From the top of a building, 16 m high water drop are falling at eqal intervals of time such that when the first drop reaches the ground, the fifth drop just starts. Find the distance between the successive drops at hat instant.

Explanation

To solve the problem, we need to analyze the motion of the water drops falling from the building. The first drop reaches the ground when the fifth drop is just starting to fall. We will calculate the distance between the successive drops at that instant.

### Step 1: Understanding the Problem
We have a building of height \( h = 16 \, \text{m} \). Water drops are falling from the top at equal intervals of time. When the first drop reaches the ground, the fifth drop is just starting to fall.

### Step 2: Determine the Time of Fall for the First Drop
The time taken for the first drop to fall from the height \( h \) can be calculated using the equation of motion:
\[
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