Water, of Density 1000 Kg/m³, Is Flowing in a Drainage

Multiple Choice

Water, of density 1000 kg/m³, is flowing in a drainage channel of rectangular cross-section. The width of the channel is 15 m, the depth of the water is 8.0 m and the speed of the flow is 2.5 m/s. At what rate is water flowing in this channel?

A) 2.0 × 10⁵ kg/s
B) 2.0 × 10³ kg/s
C) 3.0 × 10⁵ kg/s
D) 3.0 × 10³ kg/s
E) 3.0 × 10² kg/s