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A Block Is at Rest on a Rough Inclined Plane μ\mu

Question 23

Multiple Choice

A block is at rest on a rough inclined plane and is connected to an object with the same mass as shown. The rope may be considered massless; and the pulley may be considered frictionless. The coefficient of static friction between the block and the plane is μs; and the coefficient of kinetic friction is μk.
 A block is at rest on a rough inclined plane and is connected to an object with the same mass as shown. The rope may be considered massless; and the pulley may be considered frictionless. The coefficient of static friction between the block and the plane is μs; and the coefficient of kinetic friction is μk.    -If the rope were cut between the block and the pulley, what would be the magnitude of the acceleration of the block down the plane? A) g B) g -  \mu <sub>k</sub> sin  \theta  C) g -  \mu <sub>k</sub> cos  \theta  D) g(tan  \theta  -  \mu <sub>k</sub> sin  \theta )  E) g(sin  \theta  -  \mu <sub>k</sub> cos  \theta )
-If the rope were cut between the block and the pulley, what would be the magnitude of the acceleration of the block down the plane?


A) g
B) g - μ\mu k sin θ\theta
C) g - μ\mu k cos θ\theta
D) g(tan θ\theta - μ\mu k sin θ\theta )
E) g(sin θ\theta - μ\mu k cos θ\theta )

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