Repeat Problem 106 for a 3-kg block moving at 6 m/s to the right and a 6-kg block moving at 3 m/s to the left. Follow the procedures outlined in Problem 8-106. One obtains the following results.

(a) The total kinetic energy of the two-block system,

(b) The velocity of the center of mass,

(c) The center-of-mass kinetic energy, and

(d) The kinetic energy relative to the center of mass