A 800 kg rocket is fired from earth so that exhaust speed is 1200 m/s. Then calculate mass of fuel burning per second, to provide initial thurst to overcome its weight. `(g=10m//s^(2))`.

Explanation

To solve the problem, we need to calculate the mass of fuel burning per second to provide the initial thrust required to overcome the weight of the rocket. We will use Newton's second law and the concept of thrust in rockets.

### Step-by-Step Solution:

1. **Identify the Given Values:**
- Mass of the rocket (m) = 800 kg
- Exhaust speed (v_e) = 1200 m/s
- Acceleration due to gravity (g) = 10 m/s²
...