A particle has initial velocity (2 + 3) and acceleration

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A particle has initial velocity (2 + 3) and acceleration (0.3 + 0.2). The magnitude of velocity after 10 seconds will be :

1. 9√2 units
2. 5√2 units
3. 5 units
4. 9 units

Correct Option: D

= v = (2î + 3ĵ) + (0.3î + 0.2ĵ) × 10 = 5î + 5ĵ
|v| = √5² + 5 ²
|v| = 5 √2