Person aiming to reach the exactly opposite point on the bank of a stream is swimming with a speed of 1 ms–1 at an angle of 1350 with the direction of flow of water. The speed of water in the stream is

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1 ms−1

0.707 ms−1

0.67 ms−1

3 ms−1

answer is B.

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Detailed Solution

sinθ=VwVb ⇒sin450=Vw1 ⇒12=Vw ⇒Vw=0.707ms−1

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