如图为过山车以及轨道简化模型不计一切阻力以下判断正确的是 A.过山车在圆轨道上做匀速圆�运动b.过山车在圆轨道最高点时的速度应为 Template




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tomski如图为过山车以及轨道简化模型不计一切阻力以下判断正确的是 a.过山车在圆轨道上做匀速圆�运动b.过山车在圆轨道最高点时的速度应为 coloring