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.
particle has a (constant) mechanical energy E of 4.0 J. Sketch a plot
of its kinetic energy K(x) directly on this figure.