For the horizontal pipe, the fluid inside it is flowing horizontally then Bernoulli'sequation can be written as
Correct answer: B. 2P + ρv2 = constant
- A. P + ρv = constant
- B. 2P + ρv2 = constant
- C. P + 2ρv2 = constant
- D. 2P + 2ρv2 = constant
Explanation
Since the pipe is horizontal, the average height remains the same so And hence ph=0. Therefore, Bernoulli's equation can be written as 2P+pv2 = constant. As it is a numerical, it can have only one possible answer.
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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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