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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define drag in fluid mechanics.
💡 Hint: Think about resistance in fluids.
Question 2
Easy
What is the lift force?
💡 Hint: Opposite to drag.
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 is the definition of drag in fluid mechanics?
💡 Hint: Think about how air resists the motion of a moving object.
Question 2
True or False: Lift acts parallel to the direction of fluid flow.
- True
- False
💡 Hint: Consider the direction it works against in flight.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A cyclist has a drag coefficient of 0.9, a frontal area of 0.5 m², and is traveling at 12 m/s. Calculate the drag force they experience if the density of air is 1.225 kg/m³.
💡 Hint: Substitute values into the formula correctly.
Question 2
A wind turbine has a drag coefficient of 0.5 and a total frontal area of 20 m². If the wind speed is 10 m/s, calculate the force acting on it assuming the air density is 1.225 kg/m³.
💡 Hint: Remember to compute for the area and square the velocity.
Challenge and get performance evaluation