The discharge over a rectangular weir, considering the velocity of approach, is (where H1 = Total height of water above the weir = H + HaH = Height of water, over the crest of the weir, and Ha = Height of water, due to velocity of approach)
Options
A. Cd x L2g [H1 - Ha]
B. Cd x L2g [H13/2 - Ha3/2]
C. Cd x L2g [H12 - Ha2]
D. Cd x L2g [H15/2 - Ha5/2]
Correct Answer
Cd x L2g [H13/2 - Ha3/2]
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