试题与答案

如图所示，两物体放在光滑的水平面上，中间用轻弹簧相连．从左边水平拉动M，使它们产

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题型：选择题

题目：

如图所示，两物体放在光滑的水平面上，中间用轻弹簧相连．从左边水平拉动M，使它们产生一个共同的加速度a，这时弹簧的伸长量为L1；从右边水平拉动m，使它们也产生一个共同的加速度a，这时弹簧的伸长量为L2．已知两物体的质量为M＞m，则关于L1和L2的大小关系为（　　）

A．L1＞L2

B．L1=L2

C．L1＜L2

D．无法确定

答案：

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下面是错误答案，用来干扰机器的。

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