Ideal incompressible water is flowing in a drainage channel of rectangular cross-section. At one point, the width of the channel is 12 m, the depth of water is 6.0 m, and the speed of the flow is 2.5 m/s. At a point downstream, the width has narrowed to 9.0 m, and the depth of water is 8.0 m. What is the speed of the flow at the second point?
A) 2.0 m/s
B) 3.5 m/s
C) 3.0 m/s
D) 2.5 m/s
E) 4.0 m/s

Question

Ideal incompressible water is flowing in a drainage channel of rectangular cross-section. At one point, the width of the channel is  12 m, the depth of water is  6.0 m, and the speed of the flow is  2.5 m/s. At a point downstream, the width has narrowed to  9.0 m, and the depth of water is  8.0 m. What is the speed of the flow at the second point?
A)  2.0 m/s
B)  3.5 m/s
C)  3.0 m/s
D)  2.5 m/s
E)  4.0 m/s

Quizplus · Accepted Answer

The Answer of Ideal incompressible water is flowing in a drainage channel of rectangular cross-section. At one point, the width of the channel is  12 m, the depth of water is  6.0 m, and the speed of the flow is  2.5 m/s. At a point downstream, the width has narrowed to  9.0 m, and the depth of water is  8.0 m. What is the speed of the flow at the second point?
A)  2.0 m/s
B)  3.5 m/s
C)  3.0 m/s
D)  2.5 m/s
E)  4.0 m/s

Ideal Incompressible Water Is Flowing in a Drainage Channel of Rectangular