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3 cards from this section. Quick, good the night before a test.
What is friction?
Think about what happens when you try to slide something.
Name one advantage of friction.
Consider activities you do every day.
What type of friction opposes the initial motion of an object?
Think about what keeps an object from moving.
True or False: Friction can only have negative effects.
Consider both advantages and disadvantages of friction.
A box weighing 50 kg is pushed along a rough surface with a coefficient of friction of 0.4. Calculate the frictional force acting on it.
Start by calculating the normal force based on weight.
Discuss the impact of friction on the design of roller coasters.
Think about how friction might affect speed and stability.
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