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题目(第19届全国中学生物理竞赛预赛试题) 质量为m1、倾角为θ的斜劈放置在水平地面上,斜劈的斜面上放置一质量为m2的薄物块,薄物块面积较大的侧面与斜劈的斜面贴合,如图1所示.已知物块与斜劈间的最图l大静摩擦因数为μs,斜劈与水平地面间的动摩擦因数与最大静摩擦因数均为μk.如果对
Topic (The 19th National Junior High School Physics Competition Preliminaries Questions) Mass m1, slant angle θ is placed on the level ground, a thin mass of m2 is placed on the slant of the slant, the side of the larger area is Oblique inclined ramp fit, as shown in Figure 1. Known between the block and the ramp Figure l Large static friction coefficient μs, the dynamic friction coefficient between the ramp and the level of the ground and the maximum static friction factor are μk.