如图所示将质量均为m厚度不计的两物块ab用轻质弹簧相连接第一次只用手托着b物块于h高度a在弹簧弹力的作用下处于静止现将弹簧锁定此时 Template




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tomski如图所示将质量均为m厚度不计的两物块ab用轻质弹簧相连接第一次只用手托着b物块于h高度a在弹簧弹力的作用下处于静止现将弹簧锁定此时 coloring