(Solution Download) The potential energy of a particle constrained to move along

The potential energy of a particle constrained to move along the x -axis is shown in the graph. At x = 0, the particle is moving in the + x -direction with a kinetic energy of 400 J. Can this particle get into the region 3 cm < x < 8 cm? Explain. If it can, what is its kinetic energy in that region? If it can't, what happens to it?