An object with mass M of 2.85 kg is held in place on an inclined plane that makes an angle @ of 40.0 with the horizontal [see figure below). The coefficient of kinetic friction between the plane and the object is e = 0.562 A second object that has a mass Mb of 4.75 kg is connected to the first object with a massless string over a massless, frictionless pulley. 1) Calculate the initial acceleration of the system once the objects are released. (Express your answer to three significant figures.) E]