A.2.2 - Friction
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Practice Questions
Test your understanding with targeted questions
What is the name of the friction that acts when an object is moving?
💡 Hint: This type of friction occurs during motion.
What does \( \mu \) stand for in friction equations?
💡 Hint: It's a measure of how much friction exists between two surfaces.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is static friction?
💡 Hint: Think about pushing a stationary object.
True or False: Kinetic friction is generally greater than static friction.
💡 Hint: Consider how hard it is to start moving something compared to keeping it moving.
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Challenge Problems
Push your limits with advanced challenges
A car weighs 1200 kg and has a coefficient of static friction of 0.7. Calculate the maximum static friction before it starts to move.
💡 Hint: Find the normal force first by using the weight.
Describe how friction impacts a skateboarder accelerating on flat ground versus on a hill.
💡 Hint: Think about how weight affects movement when going uphill vs. flat.
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