An old person moves on a semi circulasr track of radius 40.0 m during a moirning walk. If he starts at one end of the track and reaches at the other end, find the distance covered and the displacement of the person.

Explanation

To solve the problem, we need to find both the distance covered and the displacement of the old person moving along a semi-circular track of radius 40.0 m.

### Step-by-Step Solution:

1. **Understanding the Track**:
The old person is walking along a semi-circular track. The radius of the semi-circle is given as \( r = 40.0 \, \text{m} \).

2. **Calculating the Distance Covered**:
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