Starting from rest, two skaters "push off" against each other on smooth level ice, where friction is negligible. One is a man and one is a woman. The woman moves away with a velocity of +2.3 meter per second relative to the ice. The mass of the woman is 55 kilogram and the mass of the man is 76 kilogram. Assuming that the speed of light is 3.3 meter per second, thus that the relativistic momentum must be used, obtain the recoil velocity of the man relative to ice.