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In a forced vortex, how does the velocity of fluid change with increasing radius from the center?

19. In a forced vortex, how does the velocity of fluid change with increasing radius from the center?

1. Velocity increases linearly
2. Velocity remains constant
3. Velocity decreases linearly
4. Velocity increases exponentially

Answer: C) Velocity decreases linearly.

Explanation:

In a forced vortex, the velocity of fluid decreases linearly with increasing radius from the center due to the conservation of mass and angular momentum. This results in a converging flow pattern.