Two bocks of masses 10 g and 20 kg are plced on the X-axis. The first mass is moved on the axis by a distance of 2 cm. By what distance should the second mass be moved to keep the position of the centre of mass unchanged?

Explanation

To solve the problem, we need to maintain the position of the center of mass (CM) of the system unchanged when one of the masses is moved.

### Given:
- Mass \( m_1 = 10 \, \text{g} = 0.01 \, \text{kg} \)
- Mass \( m_2 = 20 \, \text{kg} \)
- Displacement of \( m_1 \) (denoted as \( s_1 \)) = 2 cm = 0.02 m

### Step 1: Understand the Center of Mass Formula
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