5.112. moving moving wedge. a wedge with mass m rests on a frictionless, horizontal tabletop. a block with mass m is placed on the wedge (fig. p5.112a). there is no friction between the block and the wedge. the system is released from rest. (a) calculate the acceleration of the wedge and the horizontal and vertical components of the acceleration of the block. (b) do your answers to part (a) reduce to the correct results when m is very large? (c) as seen by a stationary observer, what is the shape of the trajectory of the block?