A bird can fly in the air at a constant speed 13 m s There is a wind of speed of 18 km hr blowing from the north The bird has to

Question

A bird can fly in the air at a constant speed 13 m s There is a wind of speed of 18 km hr blowing from the north The bird has to move in the east west direction What is its speed in m s with respect to the earth 1 5 2 12 3 13 4 18

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