Q: A 10-kg object sits on a 30° incline as shown in the diagram below. What is the minimum coefficient of static friction needed to keep the object unmoving on the incline? Assume g = 10 m/s2. Note: the diagram is not drawn to scale.
A		sin(60°)
B		sin(30°)
C		sin(60°)/sin(30°)
D		sin(30°)/sin(60°)

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