A box is moving with speed . If the mass of the box were quadrupled and the speed were reduced to /4 , which of the following statements is correct ? A The kinetic energy of the box is smaller than in the first case, but the momentum is larger. B The kinetic energies of the boxes are the same in both cases. C The kinetic energy of the box is 1/16 of its previous value. D The kinetic energy of the box is smaller than in the first case, but the momenta of both are the same