<\/ins><\/p>\n\n\n\n1 v\u00f2ng h\u1ebft 2 ph\u00fat = 120s \n<\/p>\n\n\n\n
\u21d2 Th\u1eddi gian quay xe \u0111i \u0111\u01b0\u1ee3c m\u1ed9t qu\u1ea3ng \u0111\u01b0\u1eddng b\u1eb1ng chu vi c\u1ee7a \u0111\u01b0\u1eddng tr\u00f2n l\u00e0: t = T = 120(s) (T \u0111\u01b0\u1ee3c g\u1ecdi chu k\u1ef3 quay)\n<\/p>\n\n\n\n
T\u1ed1c \u0111\u1ed9 d\u00e0i c\u1ee7a xe l\u00e0: \n<\/p>\n\n\n\n