A cardinal (Richmondena cardinalis) of mass 4.20×10−2 kg and a baseball of mass 0.150 kg have the same kinetic energy. What is the ratio of the cardinal's magnitude pc of momentum to the magnitude pb of the baseball's momentum? A man weighing 650 N and a woman weighing 450 N have the same momentum. What is the ratio of the man's kinetic energy Km to that of the woman Kw?

A cardinal (Richmondena cardinalis) of mass 4.20×10−2 kg and a baseball of mass 0.150 kg have the same kinetic energy. What is the ratio of the cardinal's magnitude pc of momentum to the magnitude pb of the baseball's momentum? A man weighing 650 N and a woman weighing 450 N have the same momentum. What is the ratio of the man's kinetic energy Km to that of the woman Kw?