A Force F = (2 hati + hatj + 3 hatk) N a...

A Force F = `(2 hati + hatj + 3 hatk)` N acts on a particle of mass 1 kg for 2 s . If initial velocity of particle is u = `(2 hati + hatj)` m/s . Speed of particle at the end of 2 s will be

12 m/s

6 m/s

9 m/s

4 m/s

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