A man can swim with a speed of 4.0 km/h in still water. How long does he take to cross a river 1.0 km wide if the river flows steadily at `3.0 km//h` and he makes his strokes normal to the river current? How far down the river does he go when he reacher the other bank?

A man can swim with a speed 4km/hr in still water. (a) How long does he takes to cross a river 1 km wide if the river flows steadily at 3 km/hr and makes his strokes normal to the river current? (b) How far down the river does he go when he go when he reaches the other bank?

A man can swim with a speed 4km/hr in still water. (a) How long does he takes to cross a river 1 km wide if the river flows steadily at 3 km/hr and makes his strokes normal to the river current? (b) How far down the river does he go when he go when he reaches the other bank?

A man can swim with a speed of 4kmh^(-1) in still water. He crosses a river 1km wide that flows steadly at 3kmh^(-1) . If he makes his strokes normal to the river current, how far down the river does he go when he reaches the other bank?

A man can swim with a speed of 4kmh^(-1) in still water. He crosses a river 1km wise that flows steadly at 3kmh^(-1) . If he makes his strokes normal to the river current, how far down the river does he go when he reaches the other bank?

A man can swim at a speed of 3 km h^-1 in still water. He wants to cross a 500-m wide river flowing at 2 km h^-1 . He keeps himself always at an angle to 120^@ with the river flow while swimming. The time taken to cross the river is.

A man can swim at a speed of 3 km h^-1 in still water. He wants to cross a 500-m wide river flowing at 2 km h^-1 . He keeps himself always at an angle to 120^@ with the river flow while swimming. The time taken to cross the river is.

A man can swim at a speed of 5km//h in the still water. He wants to cross a 1600m wide river flowing at 4 km//h . He keeps himself at an angle 127^(@) with the river flow while swimming. (a) Find the time he takes to cross the river. (b) Find the distance traveled by him along the flow.