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QNEET-2019-Ph-805: NEET 2019 Physics - Class 11 NEET-2019-Ph-805 Solution: The speed of a swimmer in still water is 20 m/s. The speed of…

The speed of a swimmer in still water is 20 m/s. The speed of river water is 10 m/s and is flowing due east. If he is standing on the south bank and wishes to cross the river along the shortest path the angle at which he should make his strokes w.r.t. north is given by: 0∘0^\circ 60∘60^\circ 45∘45^\circ west 30∘30^\circ west

Multiple Choice Options

  • A 0 o
  • B 60
  • C 45 o west
  • D 30 o west

Step-by-Step Verified Solution

V SR = 20 m/s V RG = 10 m/s V _ S G = V _ S R + V _ R G sin _ = | V _ R G V _ S R | = 10 20 = 1 2 _ _ = 30� west-side

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