Question

The wind appears to blow from north to a man moving north-east at 10root2 kmph. When he doubles his
velocity, the wind appears to blow from a direction (cot inverse 2) east of north. The actual wind velocity is:
(A) 10 kmph south
(B) 10/2 kmph north east
(C) 102 kmph north
(D) 10 kmph east​

Answer 1

Explanation:

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