Question: A V - shaped ( not a V - notched weir ) cast iron channel carries water uniformly at a flow rate of 3 m

A V-shaped (not a V-notched weir) cast iron channel carries water uniformly at a flow rate of 3 m3/s and has a slope of 0.0018. Should the flow be classified as subcritical, critical, or supercritical?
A V - shaped ( not a V - notched weir ) cast iron

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