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4 cards from this section. Quick, good the night before a test.
Define drag in fluid mechanics.
Think about resistance in fluids.
What is the lift force?
Opposite to drag.
What is the definition of drag in fluid mechanics?
Think about how air resists the motion of a moving object.
True or False: Lift acts parallel to the direction of fluid flow.
Consider the direction it works against in flight.
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.
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.
Remember to compute for the area and square the velocity.
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