Q. 4.13 A man can swim with a speed of in still water. How long does he take to cross a river wide if the river flows steadily at and he makes his strokes normal to the river current? How far down the river does he go when he reaches the other bank?
The speed of man is (swim speed ) = 4 Km/h.
Time taken to cross the river will be :
Total distance covered due to the flow of the river:-