The slope of the river is 10 cm / km, or 0.0001. Determine the difference in altitude between points A and B, if the first one is 100 km upstream of the second.
1) To find the difference in heights, let’s determine the fall of the river in this section.
The slope of a river is the ratio of its fall (in cm) to its length (in km).
Y (river slope) = P (river fall): L (river length), hence
P = Y × L = 10 cm / km × 100 km = 1000 cm = 10 m
Answer: the difference in height between points A and B is 10 m.
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