Static Friction on an Inclined Plane
A 10 kg block is placed on an inclined plane that forms an angle θ with the horizontal. The coefficient of static friction between the block and the plane is μs = 0.4. Determine the angle θ at which the block is on the verge of sliding.
A
45.0°
B
38.7°
C
21.8°
D
18.4°
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