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匀变速直线运动

> 如图，光滑斜面AE被分成四个相等的部分，一个物体由A点静止释放，下面结论中正确的是 A．物体到达各点的速度vB： vC：vD：：vE=1：21/2：31/2：2 B．物体到达各点所经历的时间tB： tC：tD：：tE=1：21/2：31/2：2 C．物体从A到E的平均速度v=vB D．经过每一部分时，其速度增量均相同

问题：

发布时间：2024-09-07

如图，光滑斜面AE被分成四个相等的部分，一个物体由A点静止释放，下面结论中正确的是

A．物体到达各点的速度v_B： v_C：v_D：：v_E=1：2^1/2：3^1/2：2

B．物体到达各点所经历的时间t_B： t_C：t_D：：t_E=1：2^1/2：3^1/2：2

C．物体从A到E的平均速度v=v_B

D．经过每一部分时，其速度增量均相同

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