A liquid at outlet with velocity V, in horizontal tube; reaction force exerted by liquid upon tube" 'is propositional to
Correct answer: B. V2
- A. V
- B. V2
- C. 1/V2
- D. V4
Explanation
The correct answer is V2. In fluid dynamics, when a fluid exits a tube with a certain velocity, the reaction force on the tube is proportional to the momentum change, which is a function of mass flow rate and velocity. Since mass flow rate is constant, the force is proportional to the square of the velocity, V2. Option A is incorrect because a linear relationship does not capture the dynamics of momentum change. Option C is incorrect as it suggests an inverse relationship, which is not applicable here. Option D is incorrect because a quartic relationship does not fit the principles of fluid dynamics governing this situation.
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