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1问题的背景2007年江苏省普通高中学业水平测试(必修科目)物理试卷中第28题:滑板运动是一种陆地上的“冲浪运动”.滑板运动员可在不同的滑坡上滑行,做出各种动作,给人以美的享受.如图1是模拟的滑板组合滑行轨道,该轨道由足够长的斜直轨道、半径R1=1m的凹形圆弧轨道和半径R2=1.6
1 Background of the Problem 2007 Jiangsu Provincial General High School Proficiency Test (required subjects) Physics Question 28: Skateboarding is a land-based “surfing”. Skateboarders can glide on different landslides to make each This kind of movement gives people a beautiful enjoyment. Fig. 1 is a simulation of the skateboarding combination slide path. The track consists of a long enough straight track, a concave circular arc track with a radius of R1=1m and a radius of R2=1.6.