A particle of mass 100 gm and charge `2muC` is released from a distance of 50 cm from a fixed charge of `5muC`. Find the speed of the particle when its distance from the fixed charge becomes 3 m.

Explanation

To solve the problem step-by-step, we will apply the principle of conservation of energy. Here’s how we can approach the question:

### Given Data:
- Mass of the particle, \( m = 100 \, \text{g} = 0.1 \, \text{kg} \)
- Charge of the particle, \( q_2 = 2 \, \mu\text{C} = 2 \times 10^{-6} \, \text{C} \)
- Fixed charge, \( q_1 = 5 \, \mu\text{C} = 5 \times 10^{-6} \, \text{C} \)
- Initial distance from the fixed charge, \( r_1 = 50 \, \text{cm} = 0.5 \, \text{m} \)
- Final distance from the fixed charge, \( r_2 = 3 \, \text{m} \)
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