Practice Example Problems - 3.3 | 3. Lecture - 14: Conservation of Momentum: Example Problems | Fluid Mechanics - Vol 2
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3.3 - Example Problems

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is steady flow in fluid mechanics?

💡 Hint: Think about how changes in velocity would affect flow characteristics.

Question 2

Easy

Define a control volume.

💡 Hint: Consider why we isolate a region to understand fluid behavior.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What does the conservation of momentum state?

  • Momentum is always increasing
  • Total momentum remains constant
  • Momentum can be created or destroyed

💡 Hint: Think about how momentum behaves in a closed system.

Question 2

True or False: Steady flow means that the fluid's pressure and velocity are constant over time.

  • True
  • False

💡 Hint: Focus on what 'steady' means in terms of time dependence.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A 2000 kg truck is moving at 20 m/s. It encounters a sudden obstacle causing a change in momentum due to an emergency stop. Calculate the required stopping force if it takes 5 seconds to stop.

💡 Hint: Remember that force relates to the rate of change of momentum.

Question 2

A water tank has two exits with different velocities, flowing out. How would you calculate the net force acting on the tank due to these exits?

💡 Hint: Consider that pressure at the exits might affect your calculations.

Challenge and get performance evaluation