Two blocks of weights 46.0 and 76.0 N are connected by as massless string and slide down an inclined plane making and angle of 23.0 deg. to the horizontal. The cofficient of kinetic friction between the lighter block and the plane is 0.35 and between the heavier block and the plane is 0.44. Assuming that the lighter block ``leads'', find the magnitude of the blocks' acceleration.