Which of the following statements is false?
(a) The momentum of a heavy object is greater than that of a light object moving at the same speed.
(b) In a perfectly inelastic collision, all the initial kinetic energy of the colliding bodies is dissipated.
(c) The momentum of a system of colliding bodies may be conserved even though the total mechanical energy may not.
(d) The velocity of the center of mass of a system is the system's total momentum divided by its total mass.