A drunkard walking in a narrow lane takes 5 steps forward and 3 steps backward, followed again by 5 steps forward and 3 steps backward, and so on. Each step is 1 m long and requires 1 s. Plot the `x -t` graph of his motion. Determine graphically and otherwise how long the drunkard takes to fall in a pit 13 m away from the start

Explanation

To solve the problem step by step, we will analyze the drunkard's movement, plot the graph, and determine the time taken to reach the pit.

### Step 1: Understand the Movement Pattern
The drunkard takes 5 steps forward and then 3 steps backward. Each step is 1 meter long and takes 1 second.

- **Forward Movement:** 5 steps = 5 meters (5 seconds)
- **Backward Movement:** 3 steps = 3 meters (3 seconds)

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