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3 cards from this section. Quick, good the night before a test.
Define friction drag.
Think about what happens at the surface of an object moving through water.
What is the drag coefficient?
Consider the factors that affect how drag is calculated.
What causes friction drag?
Consider what happens at the surface level.
True or False: Pressure drag only occurs in turbulent flow.
Think about the scenarios in which pressure drag can be observed.
A car with a frontal area of 2.4 m² and a drag coefficient of 0.32 moves at 30 m/s. Calculate the drag force it experiences in the air where the density is 1.225 kg/m³.
Ensure you substitute all values correctly in the drag force equation.
A swimmer with a body area of 0.7 m² experiences a drag force of 5 N while moving at 1.5 m/s in water with a density of 998 kg/m³. Find the swimmer's drag coefficient.
Use the provided values to calculate the drag coefficient.
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