24.2.2 - Impact of Drag on Fuel Efficiency
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Practice Questions
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What is drag force?
💡 Hint: Think about how air or water pushes against an object.
State one reason why lowering the drag coefficient is important.
💡 Hint: Consider how resistance affects energy use.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the relation between drag force and fuel consumption?
💡 Hint: Consider how cars function against air resistance.
True or False: The drag coefficient has improved from 0.8 to 0.15 in the last 120 years.
💡 Hint: Think about improvements in automotive engineering.
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Challenge Problems
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A vehicle experiences a drag force of 100 N at a speed of 30 m/s with a drag coefficient of 0.3. If the speed doubles to 60 m/s, calculate the new drag force.
💡 Hint: Use the relationship between speed and drag force.
Discuss the historical changes in vehicle designs that influenced fuel efficiency and their unexpected impacts.
💡 Hint: Reflect on the balance between efficiency and practicality.
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