A 1 : 20 scale model of a spillway is built for hydraulic studies

PHYSICS · Single correct · AP · Physics 1: Algebra-based · Fluids · Fluids

Problem

A 1 : 20 scale model of a spillway is built for hydraulic studies. When the model operates, the water depth at a certain section is 0.06 m and the flow velocity is 1.8 m/s. Under dynamically similar (gravity-controlled) conditions, what depth and velocity would be expected at the corresponding section in the actual spillway? (a) 0.06 m and 8.1 m/s0.06\,\text{m and } 8.1\,\text{m/s} (b) 1.2 m and 36 m/s1.2\,\text{m and } 36\,\text{m/s} (c) 1.2 m and 8.1 m/s1.2\,\text{m and } 8.1\,\text{m/s} (d) 1.2 m and 0.09 m/s1.2\,\text{m and } 0.09\,\text{m/s}

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