一平面力系向点1简化时,主矢FR'≠0,主矩M1=0。若将该力系向另一点2简化,其主矢R'和主矩M2将分别为:A.可能为FR'≠0,M2≠0 B...

作者: rantiku 人气: - 评论: 0
问题 一平面力系向点1简化时,主矢FR'≠0,主矩M1=0。若将该力系向另一点2简化,其主矢R'和主矩M2将分别为: A.可能为FR'≠0,M2≠0 B.可能为FR'=0,M2≠M1 C.可能为FR'=0,M2=M1 D.不可能为FR'≠0,M2=M1
选项
答案 A
解析 提示:力系的简化,主矢与简化中心无关,而主矩与简化中心有关。

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