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7. Friction, Inclines, Systems

Static Friction

7. Friction, Inclines, Systems

Static Friction

Multiple Choice
In the context of static friction, what is the maximum possible magnitude of the static friction force on an object in contact with a surface, given coefficient of static friction $μ_{s}$ and normal force $N$ ?
Multiple Choice
A block $1$ rests on a horizontal surface and is connected by a light string over a frictionless pulley to a hanging block $2$ . If block $2$ is heavier and tends to pull block $1$ to the right, in which direction does the static friction force act on block $1$ ?
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Multiple Choice
A block of mass $m$ rests on a rough incline of angle $θ$ with the horizontal. What is the minimum coefficient of static friction $μ_{s}$ required to prevent the block from sliding down the plane?
Multiple Choice
Which of the following best describes the difference between $f_static$ (static friction) and $f_kinetic$ (kinetic friction)?
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Multiple Choice
When you walk across a carpet and then touch a metal object, you often feel a shock. Which of the following best explains this phenomenon in terms of static friction?
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Multiple Choice
A block rests on a rough incline at angle $θ$ above the horizontal. What is the minimum coefficient of static friction $μ_{s}$ required to prevent the block from sliding down the incline?
Multiple Choice
Which type of friction is generally more difficult to overcome when starting to move an object at rest on a surface?
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