1. The problem statement, all variables and given/known data This is a 2 part question. A block of mass m rests on a frictionless wedge that has an inclination of theta and mass M. a) Find the acceleration of the wedge M to the right such that the block m remains stationary relative to the wedge. c) You now find out that a force of magnitude F was exerted (say, by somebody's hand) on the wedge as shown in the picture below. What is the magnitude F for which the block m remains stationary relative to the wedge? Use m, M, g, and theta. 2. Relevant equations F=ma 3. The attempt at a solution I drew a FBD but I can't fathom how acceleration in the horizontal will cause a block not to move in the vertical.