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Question

A river is flowing at a speed of 3 m/s doe east. A boat, whose speed in still water is 6 m/s, sis steered in the direction due to the north. Find the angle made by the resultant velocity of summer w.r.t river flow.

A
30
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B
37
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C
53
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D
63.4
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Solution

The correct option is D 63.4
Speed of river, Vr=3m/s
Speed of boat, Vb=6m/s
tanθ=VbVR=63tanθ=2θ=tan1(2)=63.4

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