Two, unattached boxes are accelerated by a force, F, as in the figure below. The coefficient of static friction between the boxes is 0.9 and the coefficient of kinetic friction between the boxes is 0.5. What's the minimum force, F, required such that the smaller box does not slip down the bigger box? Mass M = 9.8 kg and mass m = 2.7 kg. Assume that there is no friction between the gro

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