What was the mistake in Aristotle's idea regarding motion?

(N/A) Aristotle's fundamental mistake was the assumption that an external force is required to keep a body in a state of uniform motion. According to Aristotle,if a body is moving,it must be pushed by an external agent to maintain its velocity. He failed to account for the role of friction and air resistance,which are the actual forces that bring a moving object to rest in real-world scenarios. In the absence of such resistive forces,an object in motion will continue to move with a constant velocity indefinitely,as stated by Newton's First Law of Motion.