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

Question 101

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 mass of the suspended object is doubled, what will be the acceleration of the block up the plane? A) g(2 -  \mu <sub>k</sub> sin  \theta )  B) 2g( \mu <sub>k</sub> sin  \theta  - cos  \theta )  C) g(2tan  \theta  -  \mu <sub>k</sub> sin  \theta )  D) g(2 - sin  \theta  -  \mu <sub>k</sub> cos  \theta )  E) g(2cos  \theta  -  \mu <sub>k</sub> sin  \theta )
-If the mass of the suspended object is doubled, what will be the acceleration of the block up the plane?


A) g(2 - μ\mu k sin θ\theta )
B) 2g( μ\mu k sin θ\theta - cos θ\theta )
C) g(2tan θ\theta - μ\mu k sin θ\theta )
D) g(2 - sin θ\theta - μ\mu k cos θ\theta )
E) g(2cos θ\theta - μ\mu k sin θ\theta )

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