A river is flowing from west to east with a speed of $5 m m i n^{- 1}$ . A man can swim in still water with a velocity of $10 m m i n^{- 1}$ . In which direction should the man swim w.r.t the ground so as to take the shortest possible path to go to the south?

30^{\circ}

east of south

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30^{\circ}

west of south

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90^{\circ}

west of south

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30^{\circ}

east of north

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Solution

The correct option is C $90^{\circ}$ west of south
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A river is flowing from west to east at a speed of $5 m / m i n^{- 1}$ . A man on the south bank of the river, capable of swimming at $10 m / m i n^{- 1}$ in still waters wants to swim the river in the shortest time. In which direction should swim in a direction

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A river is flowing from west to east with a speed of 5 m min−1. A man can swim in still water with a velocity of 10 m min−1. In which direction should the man swim w.r.t the ground so as to take the shortest possible path to go to the south?

The correct option is C 90∘ west of southundefined

A river is flowing from west to east with a speed of $5 m m i n^{- 1}$ . A man can swim in still water with a velocity of $10 m m i n^{- 1}$ . In which direction should the man swim w.r.t the ground so as to take the shortest possible path to go to the south?

The correct option is C $90^{\circ}$ west of south
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