A low-energy neutron scatters off of the nucleus of a water molecule surrounding a nuclear fuel rod,

A low-intelligence neutron scatters off of the core of a water molecule enclosing a nuclear fuel rod, and its intelligence is stunted by 20%. Approximately how considerable is the celerity of the neutron stunted in this predicament? what is the nal kinetic intelligence of the neutron if all ve of these collisions are head-on collisions?