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惯性

> 下列关于运动和力的说法中正确的是 A.教室里的课桌，没人搬动时总能保持静止状态，是因为课桌不受力 B.竖直向上抛出后的排球，在空中向上运动的过程中受到的合力方向向上 C.踢出去的足球还能在水平地面上继续运动，是因为足球具有惯性 D.物块沿斜面匀速下滑时，物块所受合力为零

问题：

发布时间：2020-03-13

下列关于运动和力的说法中正确的是

A.教室里的课桌，没人搬动时总能保持静止状态，是因为课桌不受力
B.竖直向上抛出后的排球，在空中向上运动的过程中受到的合力方向向上
C.踢出去的足球还能在水平地面上继续运动，是因为足球具有惯性
D.物块沿斜面匀速下滑时，物块所受合力为零

参考答案：

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