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A butterfly is flying in North-East with 4/2 m/s w.r.t. wind. Wind is blowing at 1 m/s southwards. Displacement of butterfly in 3s is

A butterfly is flying in North-East with 4/2 m/s w.r.t. wind. Wind is blowing at 1 m/s southwards. Displacement of butterfly in 3s is (1) 10 meter (2) 15 meter (3) 20 meter (4) 5m

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