* Melting Points: Nails are typically made of steel, which has a very high melting point (around 1370-1510°C or 2500-2750°F). Gatorade is mostly water with some electrolytes and sugar. It will boil at around 100°C (212°F).
* Temperature Difference: Gatorade, even when boiling, simply cannot reach the temperatures needed to melt steel.
In summary, there is not enough heat to melt the nail with Gatorade.