If a 3 kg object has a momentum of 33 kg ms whats its velocity?

Momentum = (mass) x (speed)  33 kg-m/s = (3 kg) x (speed)Divide each side by  3 kg :   (33 kg-m/s) / (3 kg) = speed         11 m/s                = speed(You asked for velocity, but didn't give us any information about the direction in which the object is moving.  So we can only work with the speed.)