1.质量为m的物体放在倾角为α的斜面上力f垂直于斜面作用在物体上物体处于静止状态如图所示.下列说法中正确的是 A.力f越大物体所受�擦 Template




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tomski1.质量为m的物体放在倾角为α的斜面上力f垂直于斜面作用在物体上物体处于静止状态如图所示.下列说法中正确的是 a.力f越大物体所受�擦 coloring