According to fluid theory, fluids tend to travel the slowest along the edges. Therefore the fastest current will be in the middle of the river.
most narrow part
The fastest part of a river is the narrowest or shallowest. In broad, deep sections the water moves slowly, in narrow or shallow sections the river moves fastest. Of course the fastest flowing water is at a waterfall or rapid.
The source is most likely to be in the mountains because water can't flow downhill.
the rite side
Usually it is the upper reaches (often termed as mountain streams) that flow the fastest. In the lower, flatter valleys, rivers tend to slow down (except in spate, when the river is in flood)).
The fastest part of a meandering river is typically on the outside of a bend where the water accelerates due to the increased centrifugal force. This faster flow erodes the outer bank of the bend and deposits sediment on the inner bank.
what is the most dangerous part of a fire. That is the thing most likely to kill you
the Missouri river
The source
the Missouri river
it is the fitzroy river in the southern part of Colorado
The Indus River.