–/1 points ask your teacher my notes question part points submissions used during a circus act, an elderly performer thrills the crowd by catching a cannon ball shot at him. the cannon ball has a mass of 80.0 kg and its horizontal component of velocity is 10.00 m/s just before the 65.0 kg performer catches it. if the performer is initially motionless on nearly frictionless roller skates, what is his speed immediately after catching the cannon ball?