一个质量为m=2kg的小球在细绳的牵引力下在光滑的水平平板上已一个质量为m=2kg的小球在细绳牵引下在光滑水平的平板上以速率v=1.0m/s做匀速圆周运动,其半径r=30cm.现将牵引的绳子迅速放长20c
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/31 16:23:07
![一个质量为m=2kg的小球在细绳的牵引力下在光滑的水平平板上已一个质量为m=2kg的小球在细绳牵引下在光滑水平的平板上以速率v=1.0m/s做匀速圆周运动,其半径r=30cm.现将牵引的绳子迅速放长20c](/uploads/image/z/14217108-60-8.jpg?t=%E4%B8%80%E4%B8%AA%E8%B4%A8%E9%87%8F%E4%B8%BAm%3D2kg%E7%9A%84%E5%B0%8F%E7%90%83%E5%9C%A8%E7%BB%86%E7%BB%B3%E7%9A%84%E7%89%B5%E5%BC%95%E5%8A%9B%E4%B8%8B%E5%9C%A8%E5%85%89%E6%BB%91%E7%9A%84%E6%B0%B4%E5%B9%B3%E5%B9%B3%E6%9D%BF%E4%B8%8A%E5%B7%B2%E4%B8%80%E4%B8%AA%E8%B4%A8%E9%87%8F%E4%B8%BAm%3D2kg%E7%9A%84%E5%B0%8F%E7%90%83%E5%9C%A8%E7%BB%86%E7%BB%B3%E7%89%B5%E5%BC%95%E4%B8%8B%E5%9C%A8%E5%85%89%E6%BB%91%E6%B0%B4%E5%B9%B3%E7%9A%84%E5%B9%B3%E6%9D%BF%E4%B8%8A%E4%BB%A5%E9%80%9F%E7%8E%87v%3D1.0m%EF%BC%8Fs%E5%81%9A%E5%8C%80%E9%80%9F%E5%9C%86%E5%91%A8%E8%BF%90%E5%8A%A8%2C%E5%85%B6%E5%8D%8A%E5%BE%84r%3D30cm.%E7%8E%B0%E5%B0%86%E7%89%B5%E5%BC%95%E7%9A%84%E7%BB%B3%E5%AD%90%E8%BF%85%E9%80%9F%E6%94%BE%E9%95%BF20c)
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