Question

In a laminar flow of a liquid down an inclined plane, the surface velocity is 30 m/s, then the average velocity is

Answer 1

In the laminar flow of a liquid down an inclined plane, the surface velocity is found to be 30 cm/s. The average velocity of the flow, in cm/s

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Answer 2

Answer:

The average velocity is 20ms⁻¹.

Explanation:

$V_{a v g}=\frac{2}{3} \times V_{\max }$

$\mathrm{V}_{\max }$ is the maximum velocity or surface velocity.

Calculation:

Given:

$&\mathrm{V}_{\max }=30 \mathrm{~m} / \mathrm{s} \\\\&V_{a v g}=\frac{2}{3} \times V_{\max } \\\\&V_{a v g}=\frac{2}{3} \times 30 \\\\&\mathrm{~V}_{\mathrm{avg}}=20 \mathrm{~m} / \mathrm{s}$

Velocity profile In a laminar flow of a liquid down an inclined plane is parabolic in nature.