Why does the Velocity of the river increase the further the distance downstream?
Two possible reasons… 1. More sources of water combine in a river of constant depth/width. 2. The depth/width of the river is reduced. A reduction in the depth or width would reduce the cross-sectional area of the river. A constant volumetric flow of water would result in a higher river velocity. It’s the same with traffic… 1. If multiple highways combine and continue to flow without interuption…the cars would have to go faster downstream…or there would be a traffic jam upstream. 2. If a full highway declines in # of lanes, the cars would have to go faster downstream…or there would be a traffic jam upstream.
