A river is flowing from W to E with a speed of $5\text{m/min}$. A man can swim in still water with a velocity $10\text{m/min}$. In which direction should the man swim so as to take the shortest possible path to go to the south.

Q. A river is flowing from W to E with a speed of 5 m/min. A man can swim in still water with a velocity 10 m/min. In which direction should the man swim so as to take the shortest possible path to go to the south.

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

Q. A river is flowing from W to E with a speed of $5\frac{m}{min}$. A man can swim in still water with a velocity 10 $\frac{m}{min}$. In which direction should the man swim so as to take the shortest possible path to go to the south.

Q. A river is flowing from W to E with a speed of 5 m/min. A man can swim in still water with a velocity 10 m/min. In which direction should the man swim so as to take the shortest possible path to go to the south.

Q. A river is flowing from $W$ to $E$ with a speed $5m/min$. A man can swim in still water at a velocity $10m/min$. In which direction should a man swim to take the shortest path to reach the south bank?