A particle moves along the x axis through a region in which its potential energy U(x) varies as shown in the figure below.
(a) Make a quantitative plot of the force F(x) that acts on the particle, us¬ing the same x axis scale as the figure.
(b) The particle has a (constant) mechanical energy E of 4.0 J. Sketch a plot of its kinetic energy K(x) directly on this figure.