Question: Water in a rectangular channel flows into a gradual contraction section as is indicated in Fig. P10.17. If the flowrate is (Q=25) (mathrm{ft}^{3} / mathrm{s})

Water in a rectangular channel flows into a gradual contraction section as is indicated in Fig. P10.17. If the flowrate is $Q=25$ $\mathrm{ft}^{3} / \mathrm{s}$ and the upstream depth is $y_{1}=2 \mathrm{ft}$, determine the downstream depth, $y_{2}$.

Figure P10.17

b = 4 ft (1) Top view b = 3 ft V2 2 V2 (2) Side view

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