某物体从倾角为30°,长为15√3m的斜面顶端匀速下滑.若保持斜面长度不变,将斜面倾角变为60°,则物体从斜面顶端由静止滑至底端所需的时间是多少?(g取10m/s²)
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/08 04:06:27
![某物体从倾角为30°,长为15√3m的斜面顶端匀速下滑.若保持斜面长度不变,将斜面倾角变为60°,则物体从斜面顶端由静止滑至底端所需的时间是多少?(g取10m/s²)](/uploads/image/z/8512359-15-9.jpg?t=%E6%9F%90%E7%89%A9%E4%BD%93%E4%BB%8E%E5%80%BE%E8%A7%92%E4%B8%BA30%C2%B0%2C%E9%95%BF%E4%B8%BA15%E2%88%9A3m%E7%9A%84%E6%96%9C%E9%9D%A2%E9%A1%B6%E7%AB%AF%E5%8C%80%E9%80%9F%E4%B8%8B%E6%BB%91.%E8%8B%A5%E4%BF%9D%E6%8C%81%E6%96%9C%E9%9D%A2%E9%95%BF%E5%BA%A6%E4%B8%8D%E5%8F%98%2C%E5%B0%86%E6%96%9C%E9%9D%A2%E5%80%BE%E8%A7%92%E5%8F%98%E4%B8%BA60%C2%B0%2C%E5%88%99%E7%89%A9%E4%BD%93%E4%BB%8E%E6%96%9C%E9%9D%A2%E9%A1%B6%E7%AB%AF%E7%94%B1%E9%9D%99%E6%AD%A2%E6%BB%91%E8%87%B3%E5%BA%95%E7%AB%AF%E6%89%80%E9%9C%80%E7%9A%84%E6%97%B6%E9%97%B4%E6%98%AF%E5%A4%9A%E5%B0%91%3F%EF%BC%88g%E5%8F%9610m%2Fs%26%23178%3B%EF%BC%89)
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