It is unclear what the context of the question is, as it is related to fictional characters from different anime series. However, assuming the question is asking about a hypothetical scenario where Goku from Dragon Ball kills Sukuna from Jujutsu Kaisen, the answer would depend on the circumstances of the fight.

According to some fan opinions, Goku would be able to defeat Sukuna if he uses his Ultra Instinct technique. Others argue that Sukunas abilities, such as his Dismantle Cursed Technique, would make him a formidable opponent for Goku, and that Sukunas physical abilities and endurance would allow him to survive long enough to develop a counter-strategy against Goku.

It is important to note that these opinions are subjective and based on fictional characters with varying abilities and power levels. Ultimately, the outcome of a hypothetical fight between Goku and Sukuna would depend on the specific circumstances and abilities of each character.