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Body A in the figure weighs 110 N, and body B weighs 69 N. The coefficients...

Body A in the figure weighs 110 N, and body B weighs 69 N. The coefficients of friction between A and the incline are ?s = 0.55 and ?k = 0.28. Angle ? is 26°. Let the positive direction of an x axis be up the incline. What is the acceleration of A if A is initially (a) at rest, (b) moving up the incline, and (c) moving down the incline?

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