Three equal masses of 1 kg each are placed at the vertices of an equilateral `Delta PQR` and a mass of 2kg is placed at the centroid O of the triangle which is at a distance of `sqrt(2)`m from each the verticles of the triangle. Find the force (in newton) acting on the mass of 2 kg.

Explanation

To solve the problem, we need to find the net gravitational force acting on the 2 kg mass placed at the centroid O of the equilateral triangle formed by the three 1 kg masses at vertices P, Q, and R.

### Step-by-Step Solution:

1. **Identify the Setup**:
- We have three equal masses (1 kg each) located at the vertices of an equilateral triangle (P, Q, R).
- A mass of 2 kg is located at the centroid O of the triangle.
- The distance from the centroid O to each vertex (P, Q, R) is given as \( \sqrt{2} \) m.
...