Mathematics
Downstream Speed
Find speed of boat in the direction of the current.
Downstream Speed = u + v
Formula Explanation
Boat speed and stream speed add when going downstream.
Variables Explained
u = speed of boat in still water; v = speed of stream.
Solved Example
Boat speed 12 km/h, stream 3 km/h. Downstream speed?
12 + 3 = 15 km/h.