- #1
evilrain14
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Homework Statement
Both dams equally wide and equally high. The first dam holds back a very large lake, and the second dam holds back a narrow river.
Homework Equations
Which dam has to be built more strongly?
a.) the first dam
b.) the second dam
c.) both
The Attempt at a Solution
i know it would be the second dam that holds back a narrow river, but how can i prove it mathematically/algebraically?
how can i show the answer in ratio? -.-
i need your help please.
thanks!