Jon is attempting to swim straight across a swift flowing river that is 30 meters wide. Jon can swim at 5 m/s relative to the water. The current is moving at 7 m/s and Jon makes no correction for the current. How far downstream does Jon end up by the time he reaches the other shore?

Answer 1

how much time does it take to swim across?

time=distancewide/speed

How far downstream? distance=currentspeed*time