Slanting Surfaces With Friction: A 6.0-kg box slides down an inclined plane that makes an angle of 39° with the horizontal. If the coefficient of kinetic friction is 0.40, at what rate does the box accelerate down the slope?
A. 3.1 m/s2
B. 3.4 m/s2
C. 3.7 m/s2
D. 4.1 m/s2
Answer: A
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