如图所示ab是两个位于固定粗糙斜面上的正方形物块它们的质量相等但与斜面间动�擦因数不同f是沿水平方�作用于a的外力当ab都在斜面 Template




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tomski如图所示ab是两个位于固定粗糙斜面上的正方形物块它们的质量相等但与斜面间动�擦因数不同f是沿水平方�作用于a的外力当ab都在斜面 coloring