Body A in the figure weighs 96 N, and body B weighs 16 N. The coefficients of friction between A and the incline are us= 0.59 and µk = 0.25. Angle 8 is 28°. 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? Frictionless, massless pulley B

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