We find that CO is displaced from a similar to 90 K Cu(111) surface by an incident H atom beam with a cross section of similar to 10(-16) cm(2)/H atom. As for a previous study of the ejection of O-2 from Pt(111), our results indicate that part of the heat of adsorption of the incident species is carried away by the ejected molecule in a "dynamic displacement" process. We have determined the internal-state distribution of the ejected CO using quantum-state-specific laser ionization detection. We have also determined its angular and velocity distribution using a rotatable quadrupole mass spectrometer. The rotational distribution of molecules displaced in the v=0 and v=1 vibrational states are close to Boltzmann distributions at 390 K and 940 K, respectively. While the v=1 population is approximately proportional to the CO coverage, that for v=0 has a more complex coverage dependence, approximately following the presence of the CO alpha state, which gives a distinct temperature-programmed desorption peak for coverages above 1/3 ML. The equivalent vibration temperature ranges from 1500 K at low coverage to 800 K for a saturated surface. The velocity distribution of the ejected molecules is close to a Boltzmann distribution at 1300 K, corresponding to a translational energy of similar to 0.22 eV. The angular distribution is symmetric about the normal and is close to a cos(5) theta(f) at small angles, desorption angles, theta(f), approximately following a cosine distribution for theta(f)>40 degrees. We discuss the results in terms of the dynamic displacement model, where desorption of CO (v=0) is driven by a sudden switch from the chemisorption to physisorption wells. In the case of CO (v=1), we suggest that desorption may follow the formation of a temporary HCO intermediate.