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自由落体运动

> 让一轻一重两个石块同时从同一高处自由下落，空气阻力忽略不计，关于两石块的运动情况，下列说法正确的是(　　) A．重的石块落得快，先着地 B．在着地前的任一时刻，两石块具有相同的位移 C．在着地前的任一时刻，两石块具有相同的速度 D．两石块在下落这段时间内的平均速度相等

问题：

发布时间：2024-09-11

让一轻一重两个石块同时从同一高处自由下落，空气阻力忽略不计，关于两石块的运动情况，下列说法正确的是(　　)

A．重的石块落得快，先着地

B．在着地前的任一时刻，两石块具有相同的位移

C．在着地前的任一时刻，两石块具有相同的速度

D．两石块在下落这段时间内的平均速度相等

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