Ghi ch\u00fa: T\u00e0i li\u1ec7u tr\u00edch d\u1eabn<\/p>\n\n\n\n
L\u1ef1c qu\u00e1n t\u00ednh l\u00e0 m\u1ed9t trong nh\u1eefng ch\u01b0\u01a1ng tr\u00ecnh h\u1ecdc quan tr\u1ecdng trong v\u1eadt l\u00fd 10. Tuy nhi\u00ean, kh\u00f4ng ph\u1ea3i ai c\u0169ng gi\u1ea3i th\u00edch \u0111\u01b0\u1ee3c kh\u00e1i ni\u1ec7m l\u1ef1c qu\u00e1n t\u00ednh l\u00e0 g\u00ec? C\u00f4ng th\u1ee9c t\u00ednh nh\u01b0 th\u1ebf n\u00e0o? V\u1eady th\u00ec h\u00e3y kh\u00e1m ph\u00e1 ngay n\u1ed9i dung th\u00f4ng tin chi ti\u1ebft trong b\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y c\u1ee7a Vietlearn.org nh\u00e9!<\/p>\n\n\n\n
Qu\u00e1n t\u00ecnh l\u00e0 g\u00ec?<\/p>\n\n\n\n
Qu\u00e1n t\u00ednh l\u00e0 l\u1ef1c c\u1ea3n c\u1ee7a b\u1ea5t k\u1ef3 v\u1eadt th\u1ec3 n\u00e0o \u0111\u1ed1i v\u1edbi b\u1ea5t k\u1ef3 s\u1ef1 thay \u0111\u1ed5i n\u00e0o v\u1ec1 v\u1eadn t\u1ed1c c\u1ee7a n\u00f3. \u0110i\u1ec1u n\u00e0y bao g\u1ed3m nh\u1eefng s\u1ef1 thay \u0111\u1ed5i v\u1edbi t\u1ed1c \u0111\u1ed9 ho\u1eb7c h\u01b0\u1edbng chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a \u0111\u1ed1i t\u01b0\u1ee3ng. \u1ede m\u1ed9t kh\u00eda c\u1ea1nh c\u1ee7a t\u00ednh ch\u1ea5t n\u00e0y l\u00e0 xu h\u01b0\u1edbng c\u1ee7a c\u00e1c v\u1eadt th\u1ec3 ti\u1ebfp t\u1ee5c chuy\u1ec3n \u0111\u1ed9ng tr\u00ean m\u1ed9t \u0111\u01b0\u1eddng th\u1eb3ng v\u1edbi t\u1ed1c \u0111\u1ed9 kh\u00f4ng \u0111\u1ed5i v\u00e0 khi kh\u00f4ng c\u00f3 l\u1ef1c n\u00e0o t\u00e1c \u0111\u1ed9ng l\u00ean ch\u00fang.<\/p>\n\n\n\n
Khi c\u00f3 l\u1ef1c t\u00e1c d\u1ee5ng, m\u1ecdi v\u1eadt \u0111\u1ec1u c\u00f3 th\u1ec3 thay \u0111\u1ed5i v\u1eadn t\u1ed1c \u0111\u1ed9t ng\u1ed9t v\u00ec m\u1ecdi v\u1eadt \u0111\u1ec1u c\u00f3 qu\u00e1n t\u00ednh. N\u00f3i c\u00e1ch kh\u00e1c, qu\u00e1n t\u00ednh l\u00e0 t\u00ednh ch\u1ea5t gi\u1eef nguy\u00ean v\u1eadn t\u1ed1c v\u00e0 h\u01b0\u1edbng chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a v\u1eadt.<\/p>\n\n\n\n
L\u1ef1c t\u00e1c d\u1ee5ng c\u00e0ng l\u1edbn th\u00ec bi\u1ebfn \u0111\u1ed5i chuy\u1ec3n \u0111\u1ed9ng s\u1ebd di\u1ec5n ra c\u00e0ng nhanh.<\/p>\n\n\n\n
V\u00ed d\u1ee5 nh\u01b0: Ng\u01b0\u1eddi ng\u1ed3i tr\u00ean xe \u00f4 t\u00f4 c\u00f3 xu h\u01b0\u1edbng ch\u00fai v\u1ec1 ph\u00eda tr\u01b0\u1edbc khi \u00f4 t\u00f4 phanh g\u1ea5p do c\u00f3 qu\u00e1n t\u00ednh.<\/p>\n\n\n\n
Hai v\u1eadt c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng c\u00e0ng l\u1edbn th\u00ec s\u1ef1 bi\u1ebfn \u0111\u1ed5i chuy\u1ec3n \u0111\u1ed9ng di\u1ec5n ra c\u00e0ng ch\u1eadm<\/p>\n\n\n\n
V\u00ed d\u1ee5: Hai \u00f4 t\u00f4 c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng kh\u00e1c nhau nh\u01b0ng chuy\u1ec3n \u0111\u1ed9ng c\u00f9ng m\u1ed9t v\u1eadn t\u1ed1c. N\u1ebfu h\u00e3m phanh v\u1edbi l\u1ef1c c\u00f3 c\u00f9ng \u0111\u1ed9 l\u1edbn th\u00ec \u00f4 t\u00f4 c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng l\u1edbn h\u01a1n s\u1ebd d\u1eebng l\u1ea1i l\u00e2u h\u01a1n.<\/p>\n\n\n\n
L\u1ef1c qu\u00e1n t\u00ednh c\u00f2n c\u00f3 t\u00ean g\u1ecdi kh\u00e1c l\u00e0 l\u1ef1c \u1ea3o. L\u00e0 m\u1ed9t l\u1ef1c xu\u1ea5t hi\u1ec7n tr\u00ean m\u1ecdi kh\u1ed1i l\u01b0\u1ee3ng trong h\u1ec7 quy chi\u1ebfu phi qu\u00e1n t\u00ednh. Hi\u1ec3u c\u00e1ch kh\u00e1c, l\u1ef1c qu\u00e1n t\u00ednh l\u00e0 l\u1ef1c sinh ra trong h\u1ec7 quy chi\u1ebfu phi qu\u00e1n t\u00ednh, l\u1ef1c qu\u00e1n t\u00ednh c\u00f3 th\u1ec3 g\u00e2y bi\u1ebfn d\u1ea1ng v\u00e0 gia t\u1ed1c cho v\u1eadt. L\u1ef1c qu\u00e1n t\u00ednh s\u1ebd kh\u00f4ng c\u00f3 ph\u1ea3n l\u1ef1c.<\/p>\n\n\n\n
Trong c\u01a1 h\u1ecdc c\u1ed5 \u0111i\u1ec3n, l\u1ef1c qu\u00e1n t\u00ednh l\u00e0 l\u1ef1c t\u00e1c \u0111\u1ed9ng l\u00ean v\u1eadt, c\u00f3 th\u1ec3 ph\u1ee5 thu\u1ed9c ho\u00e0n to\u00e0n v\u00e0o tr\u1ea1ng th\u00e1i chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a h\u1ec7 quy chi\u1ebfn. H\u01a1n n\u1eefa lu\u00f4n t\u00ecm th\u1ea5y ph\u00e9p bi\u1ebfn \u0111\u1ed5i h\u1ec7 quy chi\u1ebfu \u0111\u1ec3 trong h\u1ec7 quy chi\u1ebfu m\u1edbi, l\u1ef1c n\u00e0y s\u1ebd bi\u1ebfn m\u1ea5t.<\/p>\n\n\n\n
L\u1ef1c qu\u00e1n t\u00ednh kh\u00f4ng th\u1ec3 quy v\u1ec1 l\u1ef1c c\u01a1 b\u1ea3n, v\u1ed1n l\u00e0 c\u00e1c l\u1ef1a kh\u00f4ng bao gi\u1edd bi\u1ebfn m\u1ea5t d\u01b0\u1edbi ph\u00e9p bi\u1ebfn \u0111\u1ed5i quy chi\u1ebfu. C\u00e1c h\u1ec7 quy chi\u1ebfu chuy\u1ec3n \u0111\u1ed9ng th\u1eb3ng \u0111\u1ec1u (kh\u00f4ng c\u00f3 gia t\u1ed1c) so v\u1edbi h\u1ec7 quy chi\u1ebfu qu\u00e1n t\u00ednh \u0111\u1ec1u l\u00e0 qu\u00e1n t\u00ednh. H\u1ec7 quy chi\u1ebfu chuy\u1ec3n \u0111\u1ed9ng c\u00f3 gia t\u1ed1c v\u1edbi h\u1ec7 quy chi\u1ebfu qu\u00e1n t\u00ednh l\u00e0 phi qu\u00e1n t\u00ednh. L\u1ef1c qu\u00e1n t\u00ednh s\u1ebd t\u1ef7 l\u1ec7 thu\u1eadn v\u1edbi kh\u1ed1i l\u01b0\u1ee3ng v\u1eadt th\u1ec3 v\u00e0 gia t\u1ed1c c\u1ee7a h\u1ec7 quy chi\u1ebfu phi qu\u00e1n t\u00ednh so v\u1edbi qu\u00e1n t\u00ednh. L\u1ef1c n\u00e0y s\u1ebd c\u00f3 h\u01b0\u1edbng ng\u01b0\u1ee3c l\u1ea1i v\u1edbi h\u01b0\u1edbng c\u1ee7a gia t\u1ed1c.<\/p>\n\n\n\n
L\u1ef1c qu\u00e1n t\u00ednh \u0111\u01b0\u1ee3c \u0111\u01b0a ra trong c\u01a1 h\u1ecdc c\u1ed5 \u0111i\u1ec3n \u0111\u1ec3 gi\u1ea3i th\u00edch cho hi\u1ec7n t\u01b0\u1ee3ng c\u01a1 h\u1ecdc trong h\u1ec7 quy chi\u1ebfu phi qu\u00e1n t\u00ednh. N\u1ebfu coi l\u1ef1c qu\u00e1n t\u00ednh nh\u01b0 m\u1ed9t th\u00e0nh ph\u1ea7n n\u1eb1m trong c\u00e1c l\u1ef1c t\u1ed5ng c\u1ed9ng th\u00ec \u0111\u1ecbnh lu\u1eadt c\u01a1 h\u1ecdc \u0111\u00f3 s\u1ebd \u0111\u01b0\u1ee3c th\u1ecfa m\u00e3n.<\/p>\n\n\n\n
C\u00f4ng th\u1ee9c t\u00ednh l\u1ef1c qu\u00e1n t\u00ednh<\/p>\n\n\n\n
X\u00e9t m\u1ed9t v\u1eadt c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng m n\u1eb1m trong h\u1ec7 quy chi\u1ebfu phi qu\u00e1n t\u00ednh. T\u1ea1i m\u1ed9t th\u1eddi \u0111i\u1ec3m nh\u1ea5t \u0111\u1ecbnh, h\u1ec7 quy chi\u1ebfu n\u00e0y s\u1ebd chuy\u1ec3n \u0111\u1ed9ng v\u1edbi gia t\u1ed1c a so v\u1edbi h\u1ec7 quy chi\u1ebfu qu\u00e1n t\u00ednh. Khi \u0111\u00f3 v\u1eadt m s\u1ebd ch\u1ecbu t\u00e1c l\u1ef1a qu\u00e1n t\u00ednh, c\u00f4ng th\u1ee9c t\u00ednh s\u1ebd l\u00e0:<\/p>\n\n\n\n
Trong \u0111\u00f3:<\/p>\n\n\n\n
Fqt: l\u00e0 l\u1ef1c qu\u00e1n t\u00ednh (N)<\/p>\n\n\n\n
m: l\u00e0 kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a v\u1eadt<\/p>\n\n\n\n
a: gia t\u1ed1c trong h\u1ec7 quy chi\u1ebfu chuy\u1ec3n \u0111\u1ed9ng (m\/s2)<\/p>\n\n\n\n
L\u1ef1c qu\u00e1n t\u00ednh s\u1ebd xu\u1ea5t hi\u1ec7n khi 1 h\u1ec7 quy chi\u1ebfu c\u00f3 gia t\u1ed1c cao h\u01a1n so v\u1edbi h\u1ec7 quy chi\u1ebfu kh\u00e1c. M\u1ed9t h\u1ec7 quy chi\u1ebfu c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c gia t\u1ed1c theo b\u1ea5t k\u1ef3 ph\u01b0\u01a1ng ph\u00e1p n\u00e0o v\u00ec th\u1ebf l\u1ef1c qu\u00e1n t\u00ednh s\u1ebd t\u00f9y \u00fd. 4 l\u1ef1c qu\u00e1n t\u00ednh th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a theo c\u00e1ch gia t\u1ed1c th\u01b0\u1eddng x\u1ea3y ra \u0111\u00f3 l\u00e0:<\/p>\n\n\n\n
1 l\u1ef1c g\u00e2y ra b\u1edfi 1 gia t\u1ed1c t\u01b0\u01a1ng \u0111\u1ed1i b\u1ea5t k\u1ef3 theo 1 \u0111\u01b0\u1eddng th\u1eb3ng<\/p>\n\n\n\n
Hai l\u1ef1c \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1ea5t k\u1ef3 t\u1eeb chuy\u1ec3n \u0111\u1ed9ng quay n\u00e0o \u0111\u00f3 (l\u1ef1c coriolis v\u00e0 l\u1ef1c qu\u00e1n t\u00ednh l\u00fd t\u00e2m).<\/p>\n\n\n\n
L\u1ef1c cu\u1ed1i hay c\u00f2n g\u1ecdi l\u00e0 l\u1ef1c Euler s\u1ebd \u0111\u01b0\u1ee3c sinh ra b\u1edfi s\u1ef1 thay \u0111\u1ed5i c\u1ee7a t\u1ed1c \u0111\u1ed9 quay.<\/p>\n\n\n\n
T\u00ecm hi\u1ec3u l\u1ef1c qu\u00e1n t\u00ednh<\/p>\n\n\n\n
H\u1ec7 quy chi\u1ebfu phi qu\u00e1n t\u00ednh l\u1ef1c qu\u00e1n<\/p>\n\n\n\n
H\u1ec7 quy chi\u1ebfu ch\u1ec9 c\u00f3 gia t\u1ed1c t\u1ecbnh ti\u1ebfn<\/p>\n\n\n\n
Ta s\u1ebd g\u1ecdi K\u2019 l\u00e0 h\u1ec7 quy chi\u1ebfu phi qu\u00e1n t\u00ednh, chuy\u1ec3n \u0111\u1ed9ng c\u00f3 gia t\u1ed1c t\u1ecbnh ti\u1ebfn so v\u1edbi h\u1ec7 quy chi\u1ebfu qu\u00e1n t\u00ednh K. M\u1ecdi kh\u1ed1i l\u01b0\u1ee3ng m trong h\u1ec7 quy chi\u1ebfu K\u2019 s\u1ebd ph\u1ea3i ch\u1ecbu t\u00e1c \u0111\u1ed9ng c\u1ee7a l\u1ef1c qu\u00e1n t\u00ednh t\u1ecbnh ti\u1ebfn Finertial= -ma<\/p>\n\n\n\n
H\u1ec7 quy chi\u1ebfu ch\u1ec9 c\u00f3 chuy\u1ec3n \u0111\u1ed9ng quay<\/p>\n\n\n\n
Trong h\u1ec7 quy chi\u1ebfu quay c\u00f3 t\u1ed1c \u0111\u1ed9 g\u00f3c l\u00e0 h\u1ec7 quy chi\u1ebfu qu\u00e1n t\u00ednh th\u00ec m\u1ecdi kh\u1ed1i l\u01b0\u1ee3ng m s\u1ebd ph\u1ea3i ch\u1ecbu t\u00e1c \u0111\u1ed9ng c\u1ee7a 3 l\u1ef1c qu\u00e1n t\u00ednh c\u00f2n l\u1ea1i \u0111\u00f3 l\u00e0:<\/p>\n\n\n\n
Trong \u0111\u00f3, l\u00e0 s\u1ef1 thay \u0111\u1ed5i c\u1ee7a vect\u01a1 t\u1ed1c \u0111\u1ed9 g\u00f3c \u2126 theo th\u1eddi gian.<\/p>\n\n\n\n
H\u1ec7 quy chi\u1ebfu t\u1ed5ng qu\u00e1t<\/p>\n\n\n\n
V\u1edbi h\u1ec7 quy chi\u1ebfu phi qu\u00e1n t\u00ednh K\u2019, quay v\u1edbi t\u1ed1c \u0111\u1ed9 \u2126 , c\u00f3 t\u1ecbnh ti\u1ebfn gia t\u1ed1c l\u00e0 a so v\u1edbi h\u1ec7 quy chi\u1ebfu qu\u00e1n t\u00ednh K\u2019 th\u00ec m\u1ecdi kh\u1ed1i l\u01b0\u1ee3ng m s\u1ebd ph\u1ea3i ch\u1ecbu t\u00e1c \u0111\u1ed9ng c\u1ee7a 4 l\u1ef1c qu\u00e1n t\u00ednh k\u1ec3 tr\u00ean.<\/p>\n\n\n\n
L\u1ef1c qu\u00e1n t\u00ednh ly t\u00e2m<\/p>\n\n\n\n
\u0110\u00e2y l\u00e0 tr\u01b0\u1eddng h\u1ee3p ri\u00eang c\u1ee7a l\u1ef1c qu\u00e1n t\u00ednh, n\u00f3 ch\u1ec9 xu\u1ea5t hi\u1ec7n khi ta ch\u1ecdn h\u1ec7 quy chi\u1ebfu v\u0103n v\u1edbi v\u1eadt c\u00f3 chuy\u1ec3n \u0111\u1ed9ng tr\u00f2n. \u0110\u00e2y l\u00e0 h\u1ec7 qu\u1ea3 c\u1ee7a tr\u01b0\u1eddng gia t\u1ed1c, xu\u1ea5t hi\u1ec7n trong h\u1ec7 quy chi\u1ebfu kh\u00f4ng qu\u00e1n t\u00ednh, m\u00e0 trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y s\u1ebd g\u1ecdi l\u00e0 h\u1ec7 quy chi\u1ebfu quay. Trong h\u1ec7 quy chi\u1ebfu quay b\u1ea1n s\u1ebd th\u1ea5y c\u00e1c v\u1eadt th\u1ec3 v\u1ed1n chuy\u1ec3n \u0111\u1ed9ng th\u1eb3ng \u0111\u1ec1u trong h\u1ec7 quy chi\u1ebfu qu\u00e1n t\u00ednh v\u00e0 b\u1ecb \u0111\u1ea9y theo ph\u01b0\u01a1ng xuy\u00ean t\u00e2m quay. V\u00e0 l\u1ef1c \u0111\u1ea9y c\u1ee7a v\u1eadt th\u1ec3 ra trong h\u1ec7 quy chi\u1ebfu ch\u00ednh l\u00e0 l\u1ef1c ly t\u00e2m.<\/p>\n\n\n\n
L\u1ef1c qu\u00e1n t\u00ednh ly t\u00e2m th\u01b0\u1eddng t\u00e1c d\u1ee5ng l\u00ean v\u1eadt n\u1eb1m trong h\u1ec7 quy chi\u1ebfu quay, c\u00f3 ph\u01b0\u01a1ng l\u00e0 \u0111\u01b0\u1eddng th\u1eb3ng n\u1ed1i t\u00e2m c\u1ee7a \u0111\u01b0\u1eddng cong v\u1edbi t\u00e2m c\u1ee7a chuy\u1ec3n \u0111\u1ed9ng. Chi\u1ec1u h\u01b0\u1edbng t\u1eeb t\u00e2m c\u1ee7a \u0111\u01b0\u1eddng cong s\u1ebd h\u01b0\u1edbng ra ph\u00eda ngo\u00e0i. L\u1ef1c ly t\u00e2m s\u1ebd t\u1ef7 l\u1ec7 v\u1edbi kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a v\u1eadt chuy\u1ec3n \u0111\u1ed9ng, b\u00ecnh ph\u01b0\u01a1ng t\u1ed1c \u0111\u1ed9 d\u00e0i v\u00e0 t\u1ec9 l\u1ec7 ngh\u1ecbch v\u1edbi b\u00e1n k\u00ednh c\u1ee7a \u0111\u01b0\u1eddng cong.<\/p>\n\n\n\n
C\u00e1c v\u00ed d\u1ee5 v\u1ec1 qu\u00e1n t\u00ednh trong cu\u1ed9c s\u1ed1ng<\/p>\n\n\n\n
Th\u1eadt kh\u00f3 \u0111\u1ec3 b\u1ea1n c\u00f3 th\u1ec3 hi\u1ec3u \u0111\u01b0\u1ee3c l\u1ef1c qu\u00e1n t\u00ednh, v\u1eady n\u00ean Vietlearn.org s\u1ebd l\u1ea5y v\u00ed d\u1ee5 \u0111\u1ec3 minh ch\u1ee9ng r\u00f5 n\u00e9t nh\u1ea5t v\u1ec1 kh\u00e1i ni\u1ec7m, \u0111\u1ecbnh ngh\u0129a n\u00e0y. \u0110\u00f3 l\u00e0:<\/p>\n\n\n\n
Khi \u0111\u00f3ng \u0111inh v\u00e0o t\u01b0\u1eddng th\u00ec chi\u1ebfc b\u00faa s\u1ebd d\u1eebng l\u1ea1i nh\u01b0ng chi\u1ebfc \u0111inh v\u1eabn theo qu\u00e1n t\u00ednh m\u00e0 l\u00fan s\u00e2u v\u00e0o t\u01b0\u1eddng.<\/p>\n\n\n\n
Khi r\u0169 b\u1ee5i b\u1ea9n kh\u1ecfi th\u1ea3m tr\u1ea3i s\u00e0n ho\u1eb7c gi\u1ebb lau th\u00ec khi gi\u0169 th\u1ea3m r\u1ed3i d\u1eebng l\u1ea1i \u0111\u1ed9t ng\u1ed9t, do qu\u00e1n t\u00ednh, b\u1ee5i b\u1ea9n s\u1ebd ti\u1ebfp t\u1ee5c chuy\u1ec3n \u0111\u1ed9ng v\u00e0 r\u1eddi ra kh\u1ecfi th\u1ea3m.<\/p>\n\n\n\n
Khi b\u00fat m\u1ef1c c\u1ee7a b\u1ea1n b\u1ecb t\u1eafc, ta v\u1ea9y m\u1ea1nh b\u00fat r\u1ed3i d\u1eebng l\u1ea1i \u0111\u1ed9t ng\u1ed9t, theo qu\u00e1n t\u00ednh m\u1ef1c ti\u1ebfp t\u1ee5c chuy\u1ec3n \u0111\u1ed9ng v\u1ec1 ph\u00eda tr\u01b0\u1edbc v\u00e0 b\u00fat ti\u1ebfp t\u1ee5c vi\u1ebft \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n
Ho\u1eb7c khi k\u00e9o co m\u1ed9t \u0111\u1ed9i th\u1ea3 tay ra th\u00ec \u0111\u1ed9i c\u00f2n l\u1ea1i s\u1ebd ng\u00e3 v\u1ec1 ph\u00eda k\u00e9o c\u1ee7a s\u1ee3i d\u00e2y.<\/p>\n\n\n\n
Mong r\u1eb1ng nh\u1eefng th\u00f4ng tin tr\u00ean \u0111\u00e2y v\u1ec1 \u201cL\u1ef1c qu\u00e1n t\u00ednh l\u00e0 g\u00ec, c\u00e1c v\u00ed d\u1ee5 v\u1ec1 l\u1ef1c qu\u00e1n t\u00ednh\u201d hy v\u1ecdng s\u1ebd gi\u00fap \u00edch b\u1ea1n. B\u1ea5t k\u1ef3 c\u00e2u h\u1ecfi n\u00e0o c\u1ea7n \u0111\u01b0\u1ee3c gi\u1ea3i \u0111\u00e1p hay \u0111\u00f3ng g\u00f3p \u00fd ki\u1ec7n cho b\u00e0i vi\u1ebft ho\u00e0n thi\u1ec7n h\u01a1n, h\u00e3y comment ph\u00eda d\u01b0\u1edbi, ch\u00fang t\u00f4i s\u1ebd gi\u1ea3i \u0111\u00e1p v\u00e0 h\u1ed7 tr\u1ee3 b\u1ea1n nhanh ch\u00f3ng<\/p>\n\n\n\n
<\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"
Ghi ch\u00fa: T\u00e0i li\u1ec7u tr\u00edch d\u1eabn L\u1ef1c qu\u00e1n t\u00ednh l\u00e0 m\u1ed9t trong nh\u1eefng ch\u01b0\u01a1ng tr\u00ecnh h\u1ecdc quan tr\u1ecdng trong v\u1eadt l\u00fd 10. Tuy nhi\u00ean, kh\u00f4ng ph\u1ea3i ai c\u0169ng gi\u1ea3i th\u00edch \u0111\u01b0\u1ee3c kh\u00e1i ni\u1ec7m l\u1ef1c qu\u00e1n t\u00ednh l\u00e0 g\u00ec? C\u00f4ng th\u1ee9c t\u00ednh nh\u01b0 th\u1ebf n\u00e0o? V\u1eady th\u00ec h\u00e3y kh\u00e1m ph\u00e1 ngay n\u1ed9i dung th\u00f4ng tin chi […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[7],"tags":[],"class_list":["post-3428","post","type-post","status-publish","format-standard","hentry","category-vat-ly"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/3428","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=3428"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/3428\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=3428"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=3428"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=3428"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}