(C)
(D)
(E)
Answers
1 . A — . This can be written in differential form as , which shows that the
force on the object will be the negative of the slope of the potential energy graph. At 1 m, this
indicates that the force will be in the negative x -direction. Note: The peak of the potential energy
graph at 2 m is not a stable equilibrium point, and the forces will push the 2 kg mass away from this
point.2 . C —Using conservation of energy and g = 10 m/s^2 , we get
3 . C —Using conservation of energy,