Final answer:
The Battle of New York demonstrated the lack of success the Continental Army had in the beginning of the American Revolutionary War.
Step-by-step explanation:
The American Revolutionary War battle that demonstrated the lack of success the Continental Army had in the beginning of the war was the Battle of New York. In 1776, under the command of Sir William Howe, the British captured New York City, which was a major setback for the American forces. This victory allowed the British to establish a stronghold and expand their control to Philadelphia as well.
The lack of success by the Continental Army in the early stages of the war can be attributed to factors such as the lack of manpower, organizational difficulties, and equipment shortages. These challenges made it difficult for the army to function as a unified and well-equipped fighting force.
Overall, the Battle of New York highlighted the initial struggles of the Continental Army and the need for them to regroup, reorganize, and gain valuable experience for future battles.