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)
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
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.
Practise Fluid Dynamics
363 free Fluid Dynamics MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Physics questions like this
Physics is on 16 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Fluid Dynamics questions
the pressure will be low where the speed of fluid is
the flow is said to streamline or laminar when every particle
The high concentration of red blood cells increases its viscosity from
How much water a pump of 2kw can raise in one minute to a height of 10 m, (Take g =10m/s2 )
At terminal velocity, fluid friction is:
𝑣 = √2g (h1 − h2) 𝑠ℎ𝑜𝑤𝑠 𝑡ℎ𝑒