This is the question:
Correct answer: B. V1/2
- A. 2V2
- B. V1/2
- C. 2V1
- D. None of these
Explanation
according to equation of continuity, AV= constant, since the area at the entrance is double the area at exit, so it's velocity has to be half the velocity at exit point.
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About Fluid Dynamics
Fluid flow is described through speed, pressure and density, including steady flow and the equation of continuity for conserving mass. Bernoulli's equation relates pressure, speed and height, while fluid drag and terminal velocity explain why a falling object eventually moves at constant speed when drag balances its weight.
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