Final answer:
The Federalists assured citizens that a strong federal government was necessary for national security and economic growth. They promised to add a Bill of Rights to protect individual liberties.
Step-by-step explanation:
The Federalists put citizens' minds at ease regarding the strength of the federal government when advocating Constitutional Ratification by assuring them that a strong central government was necessary to maintain national security and economic growth. They argued that a strong federal government would be better equipped to defend the smaller states and provide a stable currency for economic development.
Federalists also promised to add a Bill of Rights to the Constitution to protect individual liberties, addressing the concerns of Anti-Federalists who objected to the concentration of power in the federal government.
Overall, Federalists aimed to convince citizens that a strong federal government would lead to a more stable and prosperous nation.