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utbap_number1
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
![](https://blog.hocmai.vn/wp-content/uploads/2017/07/hot.gif)
mot may bay bay voi van toc khong doi theo phuong nam ngango do cao h so voi mat dat va tha mot vat.bo qua suc can cua khong khiva lay g=10m\s2,khi h=2.5km,v0=120m\s,thoi gian tu luc tha vat cho den luc cham dat la:?@-)![Wink ;) ;)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
![Wink ;) ;)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)