Body A weighs 102 N and body B weighs 32 N. The coefficients of friction among A and the incline are μs = .56 and μk = .25. Angle θ is 40 degrees. Assume that the positive direction of an x axis be up the incline. In unit-vector notation, find out the acceleration of A when A is initially (a) at rest, (b) moving up the incline, and (c) moving down the incline?