The swimmer's velocity relative to land is 0.22 - 0.15 = 0.07 m/s upstream.
The time to travel 1 km up river is
1000 m/0.07 m/s = 14,285 s
Finally, convert that to hours.
It's about 4 hours
A River Is Flowing at a velocity of 0.15 m/s west. a swimmer swims against the current at a velocity of 0.22 east, how manyu hours will it take him to swim 1 km?
1 answer