Hello, If a man how is able to row on still water at 2.5m/s. If the water is moving at 1.5m/s, in which direction should he row. The answer is he should row at 53.1 degrees upstream but the question for an observer on the boat and another observer on land, how will the motion appear? For an observer on land will the man appear to be rowing along a perpendicular to both river banks ?? Or is it for an observer flowing smoothly with the river current ?? Hence I would like to know how is motion will look like from three different points, from the land, from the water and from the boat ! Thanks !!