Two boats moving parallel to each other they will:
Correct answer: A. Attract
- A. Attract
- B. Repel
- C. Remain same
- D. None
Explanation
When two boats move parallel to each other in water, the water between them flows faster than the water outside them. According to Bernoulli's principle, faster-moving fluid has lower pressure. So the pressure between the boats becomes lower than the pressure on the outer sides. This pressure difference pushes the boats toward each other, causing them to attract. This is a known real-life application of Bernoulli's effect in fluids.
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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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