如图所示 , 两个用轻弹簧连着的滑块 A 和 B , 滑块 A 的质量为 m /2 , B 的质量为 m , 弹簧的倔强系数为 k , A 、 B 静止在光滑的水平面 上 ( 弹簧为 ) 。 若滑块 A 被水平方向射来的质量为 m /2、速度为 v 的子弹射中 , 则在射中后 , 滑块 A 及嵌在其中的子弹共同运动的速 v A = v /2 , 此时刻滑块 B 的速度 v B = 0 , 在以后的运动过程中 , 滑块 B 的最大速度 v B max =
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