No Gokus mom was not in any of the episdoes of dragonballz's episodes
I think gohan is strongest because he is like one man saiyan army. He can alone beat crores of gokus,vegetas,and all z fighters. He is so funny but when he goes serious he can destroy the universe with one blow.
bardock
his name is howzat
gokus a BEAST!
No he is gokus son
it is never revealed if goku has a cousin or not.
Kakarot
8,000
Goku's father's name is Bardock.
Yes he does join Goku's team.
The name of Goku's mother is Kanza.