BodyA in Fig. 6-33 weighs 102 N, and body B weighs 32 N. The coefficients of friction between A and the incline are us =0.56 and uk=0.25. Angle 0 is 40°. Let the positive direction of an x axis be up the incline. In unit-vector notation, 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

BodyA in Fig. 6-33 weighs 102 N, and body B weighs 32 N. The coefficients of friction between A and the incline are us =0.56 and uk=0.25. Angle 0 is 40°. Let the positive direction of an x axis be up the incline. In unit-vector notation, 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