A person moves 30 m along north direction, then moves 40 m along east direction and finally moves 20 m along south direction. Find distance & displacement

Explanation

To solve the problem of finding the distance and displacement of a person who moves in a specified path, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Movement**:
- The person moves 30 m North, 40 m East, and then 20 m South.
- We can represent these movements using a coordinate system where North is along the positive y-axis and East is along the positive x-axis.

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