https://hoc24.vn/hoi-dap/tim-kiem?q=hai+v%E1%BA%ADt+chuy%E1%BB%83n+%C4%91%E1%BB%99ng+th%E1%BA%B3ng+%C4%91%E1%BB%81u+tr%C3%AAn+c%C3%B9ng+1+%C4%91%C6%B0%E1%BB%9Dng+th%E1%BA%B3ng.+neu+%C4%91i+ng%C6%B0%E1%BB%A3c+chi%E1%BB%81u+%C4%91%E1%BB%83+g%E1%BA%B7p+nhau+th%C3%AC+sau+10s+,+kho%E1%BA%A3ng+c%C3%A1ch+gi%E1%BB%AFa+2+v%E1%BA%ADt+gi%E1%BA%A3m+15m+.+n%E1%BA%BFu+%C4%91i+c%C3%B9ng+chi%E1%BB%81u+th%C3%AC+sau+10s+,+kho%E1%BA%A3ng+c%C3%A1ch+gi%E1%BB%AFa+2+v%E1%BA%ADt+ch%E1%BB%89+gi%E1%BA%A3m+4m+.+h%C3%A3y+t%C3%ACm+v%E1%BA%ADn+t%E1%BB%91c+c%E1%BB%A7a+m%E1%BB%8Di+v%E1%BA%ADt+v%C3%A0+t%C3%ADnh+qu%C3%A3ng+%C4%91%C6%B0%E1%BB%9Dng+m%E1%BB%8Di+v%E1%BA%ADt+%C4%91%C3%A3+%C4%91i+%C4%91%C6%B0%E1%BB%A3c+trong+thoi+gian+30s&id=30778
có bn gửi câu hỏi này rồi. Có gì thì bn tham khảo nha