Answer
The Constitution of the United States of America help to fix the weakness that was observed in the Articles of Confederation which was causing problems in the 1780s
Step-by-step explanation
The U.S constitution helped to address the challenges the U.S faced in 1789 through replacing the articles of confederation with a new constitution that addressed;
• The unwillingness of states to move money to finance the national government
• A single military because every state had its own military
• A single currency for the nation, because every state printed its own currency which was a problem
• Inability of the national government to gather a military force that could put down a rebellion, for example during 1786 when the Shay’s Rebellion occurred.
• A national government will more power and authority