Velocity of boat in still water is 13m/s. If water flows in a river with a velocity of 5 m/s. What is the difference in times takes by him to cross the river in the shortest path and in the shortest time. If the width of the river is 156 m.

Velocity of boat in still water is 13m/s. If water flows in a river wi

1.	Velocity of boat in still water is 13m/s. If water flows in a river with a velocity of 5 m/s. What is the difference in times takes by him to cross the river in the shortest path and in the shortest time. If the width of the river is 156 m.
Answer» 1 SEC `(13)/(12)` sec `(SQRT(3))/(2)` sec `sqrt(3)` sec Answer :A