平抛运动和圆周运动是曲线运动中重要知识点,是基本又典型的运动.由于没能准确理解掌握曲线运动的规律和特点,同学们在做题时往往容易出错,因 Flat throwing motion and circular motion are important knowledge points in the curve motion, and they are basic and typical sports. Because they can’t accurately understand the rules and characteristics of curve motion, students are often prone to make mistakes when doing questions.