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) 0.06m and 8.1m/s
b) 1.2m and 36m/s
c) 1.2m and 8.1m/s
d) 1.2m and 0.09m/s