17.3.1 - Experimental Methods
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Practice Questions
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Define drag in fluid mechanics.
💡 Hint: Think about resistance in fluids.
What is the lift force?
💡 Hint: Opposite to drag.
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Interactive Quizzes
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What is the definition of drag in fluid mechanics?
💡 Hint: Think about how air resists the motion of a moving object.
True or False: Lift acts parallel to the direction of fluid flow.
💡 Hint: Consider the direction it works against in flight.
2 more questions available
Challenge Problems
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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.
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.
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