3.1.1 - Lecture - 14: Conservation of Momentum: Example Problems
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Practice Questions
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Define conservation of momentum.
💡 Hint: Think about how forces affect motion.
What is a control volume in fluid mechanics?
💡 Hint: Consider it as a box around fluid flow.
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Interactive Quizzes
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What does conservation of momentum help us predict?
💡 Hint: Think about what momentum affects.
True or False: Steady flow indicates that all properties of a fluid in motion are changing over time.
💡 Hint: Consider what 'steady' implies.
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Challenge Problems
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A pipe has two exits. At the first exit, 5 m/s flows into a tank, while 10 m/s exits into another region. If the diameter at Exit 1 is 0.1 m and Exit 2 is 0.15 m, calculate the force acting on the pipe from these exits.
💡 Hint: Utilize mass conservation equations alongside momentum flux principles.
For aircraft refueling at 568 liters/min with a specific gravity of 0.68, calculate the thrust needed to keep a constant velocity. Determine the momentum before and after refueling.
💡 Hint: Boyle's Law could assist in relating pressure changes to thrust requirements.
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