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滑动摩擦力

> 如图所示，光滑斜面的倾角为θ，斜面上放一光滑档板AB，档板与斜面间放一质量为m的小球，档板可以以B点为轴线转动，直至水平，在转动过程中球对档板压力的最小值为______，球对斜面压力的最小值为______．

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发布时间：2024-09-11

如图所示，光滑斜面的倾角为θ，斜面上放一光滑档板AB，档板与斜面间放一质量为m的小球，档板可以以B点为轴线转动，直至水平，在转动过程中球对档板压力的最小值为，球对斜面压力的最小值为．

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