斜面AB长为10m,倾角为30°,75m/s由底端沿斜面上滑斜面AB长为10m,倾角为30°,75m/s由底端沿斜面上滑,若物体和斜面间的动摩擦因数为(0.7根号3)/3,求经过时间2s后物体的速度及该时间间隔内物体的
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![斜面AB长为10m,倾角为30°,75m/s由底端沿斜面上滑斜面AB长为10m,倾角为30°,75m/s由底端沿斜面上滑,若物体和斜面间的动摩擦因数为(0.7根号3)/3,求经过时间2s后物体的速度及该时间间隔内物体的](/uploads/image/z/4919232-48-2.jpg?t=%E6%96%9C%E9%9D%A2AB%E9%95%BF%E4%B8%BA10m%2C%E5%80%BE%E8%A7%92%E4%B8%BA30%C2%B0%2C75m%2Fs%E7%94%B1%E5%BA%95%E7%AB%AF%E6%B2%BF%E6%96%9C%E9%9D%A2%E4%B8%8A%E6%BB%91%E6%96%9C%E9%9D%A2AB%E9%95%BF%E4%B8%BA10m%2C%E5%80%BE%E8%A7%92%E4%B8%BA30%C2%B0%2C75m%2Fs%E7%94%B1%E5%BA%95%E7%AB%AF%E6%B2%BF%E6%96%9C%E9%9D%A2%E4%B8%8A%E6%BB%91%2C%E8%8B%A5%E7%89%A9%E4%BD%93%E5%92%8C%E6%96%9C%E9%9D%A2%E9%97%B4%E7%9A%84%E5%8A%A8%E6%91%A9%E6%93%A6%E5%9B%A0%E6%95%B0%E4%B8%BA%EF%BC%880.7%E6%A0%B9%E5%8F%B73%EF%BC%89%2F3%2C%E6%B1%82%E7%BB%8F%E8%BF%87%E6%97%B6%E9%97%B42s%E5%90%8E%E7%89%A9%E4%BD%93%E7%9A%84%E9%80%9F%E5%BA%A6%E5%8F%8A%E8%AF%A5%E6%97%B6%E9%97%B4%E9%97%B4%E9%9A%94%E5%86%85%E7%89%A9%E4%BD%93%E7%9A%84)
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