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In running races at distances of 800 meters and longer, runners do not have their own lanes, so in order to pass, they have to go around their opponents. Suppose we adopt the simplified geometrical model suggested by the figure, in which the two runners take equal times to trace out the sides of an isoceles triangle, deviating from parallelism by the angle θ. The runner going straight runs at speed v, while the one who is passing must run at a greater speed. Let the difference in speeds be Δv. (

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800米怎么跑来了，纯干货视频，包含二级配速#体育生 #800米 #田径 #运动员 #齐导教学篇,800米二级分段配速- 抖音

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