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

Question

contestada

Respuesta :

Xema8 Xema8 · Answer 1 · 2020-06-25T05:44:33+02:00

Answer:

Explanation:

The volume of water flowing per second at two points will be equal as water is incompressible .

A₁ V₁ = A₂ V₂

A₁ and A₂ are cross sectional area at two points and V₁ and V₂ are velocities at the two points

12 x 6 x 2.5 = 9 x 8 x V₂

V₂ = 2.5 m /s .

Hence velocity will remain unchanged .

Answer Link