Four bodies each of mass m are placed at the different corners of a square of side a. find the work done on the system to take any one budy to infinity.

Explanation

To solve the problem of finding the work done on the system to take one body to infinity, we will follow these steps:

### Step 1: Understanding the Configuration
We have four bodies, each of mass \( m \), placed at the corners of a square of side \( a \). The positions of the masses can be labeled as follows:
- Mass \( m_1 \) at (0, 0)
- Mass \( m_2 \) at (a, 0)
- Mass \( m_3 \) at (0, a)
- Mass \( m_4 \) at (a, a)
...