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A butterfly is flying with a velocity 4 ...

A butterfly is flying with a velocity `4 sqrt(2) m//s` in North-East direction. Wind is slowly blowing at 1 m/s from North to South. The resultant displacement of the butterfly in 3 seconds is :

A

3 m

B

20 m

C

`12 sqrt(2) m`

D

15 m

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