Two bodies have undergone an elastic one-dimensional collision along an x axis. Figure 9-31 is a graph of positive versus time for those bodies and for their cneter of mass.
(a) Were both bodies initially moving, or was one initially stationary? Which line segment corresponds to the motion of the center of mass
(b) before the collision and
(c) after the collision?
(d) Is the mass of the body that was moving faster before the collision greater then, less than, or equal to that of the other body?
