Objects of masses m1-4.00kg and m2=9.00kg are connected by a light string that passes over a frictionless pulley. The object m1 is held at rest on the floor, and m2 rests on a fixed incline of theta=40.0 degrees. The objects are released from rest, and m2 slides 1.00m down the incline in 4.00s. Determine (a) the acceleration of each object, (b) the tension in the string, and (c) the coefficient of kinetic friction between m2 and the incline.