一重力大小为W= 60kN的物块自由放置在倾角为α= 30°的斜面上,如图所示,若物块与斜面间的静摩擦系数为f= 0. 4,则该物块的状态为: A.静止...

作者: tihaiku 人气: - 评论: 0
问题 一重力大小为W= 60kN的物块自由放置在倾角为α= 30°的斜面上,如图所示,若物块与斜面间的静摩擦系数为f= 0. 4,则该物块的状态为:
选项 A.静止状态 B.临界平衡状态 C.滑动状态 D.条件不足,不能确定
答案 C
解析

相关内容:重力,大小,物块,倾角,面上,如图,若物块,斜面,摩擦系数,该物块,状态,静止

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