Calculate the increase in mass when a body of rest mass 1 kg is lifted up through 1 m near the earth's surface.

Explanation

To calculate the increase in mass when a body of rest mass 1 kg is lifted up through 1 meter near the Earth's surface, we can follow these steps:

### Step 1: Understand the Concept of Mass-Energy Equivalence
According to the theory of relativity, mass can be converted into energy and vice versa. The relationship is given by the equation:
\[ E = mc^2 \]
where \( E \) is energy, \( m \) is mass, and \( c \) is the speed of light in vacuum (\( c \approx 3.0 \times 10^8 \, \text{m/s} \)).

### Step 2: Calculate the Increase in Potential Energy
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