Static Friction on an Inclined Plane
A box of mass m is placed on a rough inclined plane that makes an angle θ with the horizontal. The coefficient of static friction is μs. Which of the following inequalities represents the condition for the box to remain at rest?
A
mg sin θ ≤ μs mg cos θ
B
mg sin θ ≤ μs N
C
mg cos θ ≤ μs mg sin θ
D
μs ≥ tan θ
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