a two meter high tank full of water. A hole is made in the middle of tank. the speed of efflux is
Correct answer: C. 4.42
- A. 4.9
- B. 9.8
- C. 4.42
- D. 3.75
Explanation
As hole is in the middle so the depth to be put in torricelli's theorem would be 1m.v = √(2 * 9.8 m/s² * 1 m)v ≈ √(19.6 m²/s²)v ≈ 4.42 m/s (approximately)Therefore, based on Torricelli's theorem and considering the hole's location in the middle of the tank, the correct answer is:c. 4.42 m/s (approximately)
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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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