关于平面力系的主矢与主矩,下列的表述中不正确的是( ) -题库考试答案搜索网

关于平面力系的主矢与主矩,下列的表述中不正确的是( )

多选题

2022-04-02 12:04

A、主矢的大小和方向与简化中心的选择无关
B、主矩的大小和转向一定与简化中心的选择有关
C、当平面力系对某点的主矩为零时,该力系向任何一点简化的结果为一合力
D、当平面力系对某点的主矩不为零时,该力系向任一点简化的结果均不可能为一合力

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正确答案

BCD

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标签：黑龙江工程继续教育学院土木工程专升本工程力学平时作业1

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