{"id":3328,"date":"2021-10-20T16:47:05","date_gmt":"2021-10-20T09:47:05","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=3328"},"modified":"2021-10-22T18:08:45","modified_gmt":"2021-10-22T11:08:45","slug":"gia-toc-la-gi-phan-loai-cong-thuc-tinh-gia-toc","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/gia-toc-la-gi-phan-loai-cong-thuc-tinh-gia-toc\/","title":{"rendered":"Gia t\u1ed1c l\u00e0 g\u00ec \u2013 Ph\u00e2n lo\u1ea1i, c\u00f4ng th\u1ee9c t\u00ednh gia t\u1ed1c"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Ghi ch\u00fa: T\u00e0i li\u1ec7u tr\u00edch d\u1eabn<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gia t\u1ed1c l\u00e0 m\u1ed9t trong nh\u1eefng \u0111\u1ea1i l\u01b0\u1ee3ng v\u1eadt l\u00fd quan tr\u1ecdng, c\u00f3 trong ch\u01b0\u01a1ng tr\u00ecnh v\u1eadt l\u00fd 10. Kh\u00f4ng ch\u1ec9 c\u00f3 \u1ee9ng d\u1ee5ng th\u1ef1c ti\u1ec5n to l\u1edbn trong cu\u1ed9c s\u1ed1ng m\u00e0 c\u00f2n gi\u1eef vai tr\u00f2 quan tr\u1ecdng trong c\u00e1c c\u00f4ng tr\u00ecnh nghi\u00ean c\u1ee9u khoa h\u1ecdc. \u0110\u1ec3 gi\u00fap b\u1ea1n \u0111\u1ecdc c\u00f3 th\u00eam nhi\u1ec1u th\u00f4ng tin h\u1eefu \u00edch trong b\u00e0i vi\u1ebft n\u00e0y ch\u00fang t\u00f4i s\u1ebd \u0111em t\u1edbi cho b\u1ea1n kh\u00e1i ni\u1ec7m gia t\u1ed1c l\u00e0 g\u00ec? C\u00f4ng th\u1ee9c t\u00ednh, \u0111\u01a1n v\u1ecb \u0111o gia t\u1ed1c,\u2026d\u01b0\u1edbi \u0111\u00e2y c\u00e1c l\u00e0 th\u00f4ng tin chi ti\u1ebft.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Theo \u0111\u1ecbnh ngh\u0129a gia t\u1ed1c l\u00e0 \u0111\u1ea1i l\u01b0\u1ee3ng \u0111\u1eb7c tr\u01b0ng cho s\u1ef1 thay \u0111\u1ed5i c\u1ee7a v\u1eadn t\u1ed1c theo th\u1eddi gian. \u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng \u0111\u1ea1i l\u01b0\u1ee3ng c\u01a1 b\u1ea3n d\u00f9ng \u0111\u1ec3 m\u00f4 t\u1ea3 s\u1ef1 chuy\u1ec3n \u0111\u1ed9ng. Gi\u1ed1ng nh\u01b0 v\u1eadn t\u1ed1c, gia t\u1ed1c l\u00e0 \u0111\u1ea1i l\u01b0\u1ee3ng h\u1eefu h\u01b0\u1edbng, th\u1ee9 nguy\u00ean c\u1ee7a gia t\u1ed1c l\u00e0 \u0111\u1ed9 d\u00e0i tr\u00ean b\u00ecnh ph\u01b0\u01a1ng th\u1eddi gian.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Hi\u1ec3u c\u00e1ch kh\u00e1c gia t\u1ed1c l\u00e0 m\u1ee9c \u0111\u1ed9 thay \u0111\u1ed5i c\u1ee7a v\u1eadn t\u1ed1c trong qu\u00e1 tr\u00ecnh di chuy\u1ec3n c\u1ee7a m\u1ed9t v\u1eadt. Khi duy tr\u00ec v\u1eadn t\u1ed1c kh\u00f4ng \u0111\u1ed5i ngh\u0129a l\u00e0 v\u1eadt \u0111\u00f3 kh\u00f4ng t\u0103ng t\u1ed1c. Gia t\u1ed1c ch\u1ec9 xu\u1ea5t hi\u1ec7n khi c\u00f3 s\u1ef1 thay \u0111\u1ed5i c\u1ee7a v\u1eadn t\u1ed1c. V\u1eadn t\u1ed1c s\u1ebd thay \u0111\u1ed5i theo \u1edf m\u1ed9t m\u1ee9c \u0111\u1ed9 c\u1ed1 \u0111\u1ecbnh, \u0111\u1ed1i t\u01b0\u1ee3ng \u0111ang di chuy\u1ec3n v\u1edbi m\u1ed9t gia t\u1ed1c l\u00e0 h\u1eb1ng s\u1ed1. Trong h\u1ec7 \u0111\u01a1n v\u1ecb qu\u1ed1c t\u1ebf SI, gia t\u1ed1c c\u00f3 \u0111\u01a1n v\u1ecb l\u00e0 m\/s2 ngh\u0129a l\u00e0 m\/s m\u1ed7i gi\u00e2y.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u01a1n gi\u1ea3n h\u01a1n th\u00ec gia t\u1ed1c l\u00e0 \u0111\u1ea1i l\u01b0\u1ee3ng v\u1eadt l\u00fd \u0111\u1eb7c tr\u01b0ng cho s\u1ef1 chuy\u1ec3n \u0111\u1ed5i nhanh hay ch\u1eadm c\u1ee7a v\u1eadn t\u1ed1c c\u1ea3 v\u1ec1 h\u01b0\u1edbng v\u00e0 \u0111\u1ed9 l\u1edbn, V\u1eadn t\u1ed1c v\u00e0 gia t\u1ed1c l\u00e0 \u0111\u1ea1i l\u01b0\u1ee3ng c\u1ee7a v\u00e9c t\u01a1. Nh\u00ecn v\u00e0o s\u1ed1 \u0111o c\u1ee7a gia t\u1ed1c l\u00e0 b\u1ea1n c\u00f3 th\u1ec3 bi\u1ebft \u0111\u01b0\u1ee3c v\u1eadt \u0111\u00f3 thay \u0111\u1ed5i v\u1eadn t\u1ed1c nhanh hay ch\u1eadm.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Chuy\u1ec3n \u0111\u1ed9ng t\u0103ng t\u1ed1c khi vecto gia t\u1ed1c c\u00f9ng chi\u1ec1u v\u1edbi chuy\u1ec3n \u0111\u1ed9ng, gi\u1ea3m t\u1ed1c khi vecto gia t\u1ed1c ng\u01b0\u1ee3c chi\u1ec1u v\u1edbi chi\u1ec1u chuy\u1ec3n \u0111\u1ed9ng, \u0111\u1ed5i h\u01b0\u1edbng khi vecto gia t\u1ed1c c\u00f3 ph\u01b0\u01a1ng kh\u00e1c v\u1edbi ph\u01b0\u01a1ng chuy\u1ec3n \u0111\u1ed9ng<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f4ng th\u1ee9c t\u00ednh gia t\u1ed1c<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gia t\u1ed1c c\u00f3 c\u00f4ng th\u1ee9c t\u00ednh t\u1ed5ng qu\u00e1t nh\u01b0 sau:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong \u0111\u00f3:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">v: l\u00e0 v\u1eadn t\u1ed1c t\u1ee9c th\u1eddi t\u1ea1i m\u1ed9t th\u1eddi \u0111i\u1ec3m t<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">v0: l\u00e0 v\u1eadn t\u1ed1c t\u1ea1i t\u1ea1i th\u1eddi \u0111i\u1ec3m t0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ph\u00e2n lo\u1ea1i c\u1ee7a gia t\u1ed1c<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f3 7 lo\u1ea1i gia t\u1ed1c m\u00e0 b\u1ea1n s\u1ebd \u0111\u01b0\u1ee3c h\u1ecdc trong ch\u01b0\u01a1ng tr\u00ecnh THPT \u0111\u00f3 l\u00e0:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gia t\u1ed1c t\u1ee9c th\u1eddi<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gia t\u1ed1c t\u1ee9c th\u1eddi c\u1ee7a v\u1eadt l\u00e0 bi\u1ec3u di\u1ec5n cho s\u1ef1 thay \u0111\u1ed5i v\u1eadn t\u1ed1c c\u1ee7a v\u1eadt trong m\u1ed9t kho\u1ea3ng th\u1eddi gian v\u00f4 c\u00f9ng nh\u1ecf (t\u1ee9c th\u1eddi). Ta c\u00f3 c\u00f4ng th\u1ee9c:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong \u0111\u00f3:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">v: l\u00e0 v\u1eadn t\u1ed1c, c\u00f3 \u0111\u01a1n v\u1ecb m\/s<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">t: l\u00e0 th\u1eddi gian, c\u00f3 \u0111\u01a1n v\u1ecb l\u00e0 s<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gia t\u1ed1c trung b\u00ecnh c\u1ee7a v\u1eadt s\u1ebd bi\u1ec3u di\u1ec5n cho s\u1ef1 thay \u0111\u1ed5i v\u1eadn t\u1ed1c c\u1ee7a v\u1eadt \u0111\u00f3 trong m\u1ed9t kho\u1ea3ng th\u1eddi gian nh\u1ea5t \u0111\u1ecbnh. Hi\u1ec3u \u0111\u01a1n gi\u1ea3n, gia t\u1ed1c trung b\u00ecnh l\u00e0 s\u1ef1 bi\u1ebfn thi\u00ean c\u1ee7a v\u1eadn t\u1ed1c \u0111\u01b0\u1ee3c chia cho bi\u1ebfn thi\u00ean th\u1eddi gian v\u00e0 c\u00f3 c\u00f4ng th\u1ee9c t\u00ednh nh\u01b0 sau:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong \u0111\u00f3<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">a: l\u00e0 gia t\u1ed1c<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">v: l\u00e0 v\u1eadn t\u1ed1c \u0111\u01a1n v\u1ecb m\/s<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">t: l\u00e0 th\u1eddi gian \u0111\u01a1n v\u1ecb l\u00e0 s<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gia t\u1ed1c ph\u00e1p tuy\u1ebfn<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gia t\u1ed1c ph\u00e1p tuy\u1ebfn l\u00e0 \u0111\u1eb7c tr\u01b0ng cho s\u1ef1 thay \u0111\u1ed5i v\u1ec1 ph\u01b0\u01a1ng c\u1ee7a v\u1eadn t\u1ed1c, ph\u01b0\u01a1ng vu\u00f4ng g\u00f3c v\u1edbi ti\u1ebfp tuy\u1ebfn c\u1ee7a qu\u1ef9 \u0111\u1ea1o v\u1eadt, chi\u1ec1u lu\u00f4n h\u01b0\u1edbng v\u1ec1 ph\u00eda l\u00f5m c\u1ee7a qu\u1ef9 \u0111\u1ea1o. C\u00f4ng th\u1ee9c t\u00ednh l\u00e0:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong \u0111\u00f3:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">v: l\u00e0 t\u1ed1c \u0111\u1ed9 t\u1ee9c th\u1eddi, c\u00f3 \u0111\u01a1n v\u1ecb m\/s<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">R: l\u00e0 \u0111\u1ed9 d\u00e0i b\u00e1n k\u00ednh cong, c\u00f3 \u0111\u01a1n v\u1ecb m<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong tr\u01b0\u1eddng h\u1ee3p v\u1eadt chuy\u1ec3n \u0111\u1ed9ng tr\u00f2n \u0111\u1ec1u th\u00ec v v\u00e0 R \u0111\u1ec1u l\u00e0 nh\u1eefng \u0111\u1ea1i l\u01b0\u1ee3ng kh\u00f4ng \u0111\u1ed5i n\u00ean gia t\u1ed1c ph\u00e1p tuy\u1ebfn trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y s\u1ebd l\u00e0 gia t\u1ed1c h\u01b0\u1edbng t\u00e2m v\u00e0 kh\u00f4ng \u0111\u1ed5i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gia t\u1ed1c ti\u1ebfp tuy\u1ebfn<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L\u00e0 \u0111\u1ea1i l\u01b0\u1ee3ng m\u00f4 t\u1ea3 cho s\u1ef1 thay \u0111\u1ed5i v\u1ec1 \u0111\u1ed9 l\u1edbn v\u00e0 vecto v\u1eadn t\u1ed1c. Gia t\u1ed1c ti\u1ebfp tuy\u1ebfn s\u1ebd c\u00f3 ph\u01b0\u01a1ng tr\u00f9ng v\u1edbi ph\u01b0\u01a1ng c\u1ee7a ti\u1ebfp tuy\u1ebfn, c\u00f9ng chi\u1ec1u khi chuy\u1ec3n \u0111\u1ed9ng nhanh d\u1ea7n v\u00e0 ng\u01b0\u1ee3c chi\u1ec1u khi chuy\u1ec3n \u0111\u1ed9ng ch\u1eadm d\u1ea7n. C\u00f4ng th\u1ee9c t\u00ednh:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed1i quan h\u1ec7 gi\u1eefa gia t\u1ed1c ti\u1ebfp tuy\u1ebfn v\u1edbi gia t\u1ed1c ph\u00e1p tuy\u1ebfn: gia t\u1ed1c trong chuy\u1ec3n \u0111\u1ed9ng h\u00ecnh cong g\u1ed3m c\u00f3 2 ph\u1ea7n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gia t\u1ed1c ph\u00e1p tuy\u1ebfn l\u00e0 \u0111\u1eb7c tr\u01b0ng c\u1ee7a s\u1ef1 thay \u0111\u1ed5i v\u1ec1 ph\u01b0\u01a1ng c\u1ee7a v\u1eadn t\u1ed1c theo th\u1eddi gian<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gia t\u1ed1c tr\u1ef1c tuy\u1ebfn \u0111\u1eb7c tr\u01b0ng cho s\u1ef1 thay \u0111\u1ed5i v\u1ec1 h\u01b0\u1edbng c\u1ee7a v\u1eadn t\u1ed1c theo th\u1eddi gian.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gia t\u1ed1c to\u00e0n ph\u1ea7n<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gia t\u1ed1c to\u00e0n ph\u1ea7n \u0111\u01b0\u1ee3c hi\u1ec3u \u0111\u01a1n gi\u1ea3n l\u00e0 t\u1ed5ng c\u1ee7a hai gia t\u1ed1c, th\u1ef1c ch\u1ea5t ch\u00ednh l\u00e0 gia t\u1ed1c ti\u1ebfp tuy\u1ebfn v\u00e0 gia t\u1ed1c ph\u00e1p tuy\u1ebfn theo vect\u01a1, c\u00f4ng th\u1ee9c t\u00ednh:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gia t\u1ed1c tr\u1ecdng tr\u01b0\u1eddng<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gia t\u1ed1c tr\u1ecdng tr\u01b0\u1eddng l\u00e0 g\u00ec? Gia t\u1ed1c tr\u1ecdng tr\u01b0\u1eddng l\u00e0 \u0111\u1ea1i l\u01b0\u1ee3ng \u0111\u1eb7c tr\u01b0ng c\u1ee7a gia t\u1ed1c do l\u1ef1c h\u1ea5p d\u1eabn t\u00e1c d\u1ee5ng l\u00ean v\u1eadt. Khi b\u1ecf ua ma s\u00e1t do l\u1ef1c c\u1ea3n c\u1ee7a kh\u00f4ng kh\u00ed, theo nguy\u00ean l\u00fd t\u01b0\u01a1ng \u0111\u01b0\u01a1ng th\u00ec m\u1ecdi v\u1eadt \u0111\u1ec1u ch\u1ecbu t\u00e1c \u0111\u1ed9ng c\u1ee7a m\u1ed9t gia t\u1ed1c tr\u1ecdng tr\u01b0\u1eddng h\u1ea5p d\u1eabn l\u00e0 gi\u1ed1ng nhau \u0111\u1ed1i v\u1edbi t\u00e2m kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a v\u1eadt.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Theo \u0111\u1ecbnh ngh\u0129a, gia t\u1ed1c tr\u1ecdng tr\u01b0\u1eddng gi\u1ed1ng nhau \u0111\u1ed1i v\u1edbi m\u1ecdi v\u1eadt ch\u1ea5t v\u00e0 kh\u1ed1i l\u01b0\u1ee3ng, gia t\u1ed1c tr\u1ecdng tr\u01b0\u1eddng th\u01b0\u1eddng do l\u1ef1c h\u00fat c\u1ee7a tr\u00e1i \u0111\u1ea5t g\u00e2y ra n\u00ean th\u01b0\u1eddng kh\u00e1c nhau t\u1ea1i c\u00e1c \u0111i\u1ec3m v\u00e0 s\u1ebd dao \u0111\u1ed9ng t\u1eeb 9.78-9.83. Tuy nhi\u00ean trong c\u00e1c b\u00e0i t\u1eadp \u1ee9ng d\u1ee5ng ng\u01b0\u1eddi ta th\u01b0\u1eddng l\u1ea5y b\u1eb1ng 10 m\/s2.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gia t\u1ed1c tr\u1ecdng tr\u01b0\u1eddng t\u1ea1i m\u1ed9t \u0111i\u1ec3m n\u00e0o \u0111\u00f3 s\u1ebd \u0111\u01b0\u1ee3c t\u00ednh theo bi\u1ec3u th\u1ee9c v\u1ea1n v\u1eadt h\u1ea5p d\u1eabn Newton, c\u00f4ng th\u1ee9c t\u00ednh gia t\u1ed1c tr\u1ecdng tr\u01b0\u1eddng s\u1ebd l\u00e0: g\u2019 = gR\u00b2 \/(R+h)\u00b2<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong \u0111\u00f3:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">g: l\u00e0 gia t\u1ed1c tr\u1ecdng tr\u01b0\u1eddng t\u1ea1i m\u1eb7t \u0111\u1ea5t<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">R: l\u00e0 b\u00e1n k\u00ednh Tr\u00e1i \u0110\u1ea5t<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">h: l\u00e0 kho\u1ea3ng c\u00e1ch so v\u1edbi m\u1eb7t \u0111\u1ea5t, tr\u00ean m\u1eb7t \u0111\u1ea5t c\u00f3 gi\u00e1 tr\u1ecb d\u01b0\u01a1ng v\u00e0 d\u01b0\u1edbi m\u1eb7t \u0111\u1ea5t c\u00f3 gi\u00e1 tr\u1ecb \u00e2m<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gia t\u1ed1c g\u00f3c l\u00e0 s\u1ef1 bi\u1ebfn thi\u00ean c\u1ee7a v\u1eadn t\u1ed1c g\u00f3c c\u1ee7a v\u1eadt chuy\u1ec3n \u0111\u1ed9ng tr\u00f2n theo th\u1eddi gian. \u0110\u00e2y l\u00e0 kh\u00e1i ni\u1ec7m m\u1edf r\u1ed9ng c\u1ee7a gia t\u1ed1c trong chuy\u1ec3n \u0111\u1ed9ng th\u1eb3ng sang chuy\u1ec3n \u0111\u1ed9ng tr\u00f2n, l\u00e0 \u0111\u1ea1o h\u00e0m b\u1eadc nh\u1ea5t c\u1ee7a v\u1eadn t\u1ed1c g\u00f3c v\u00e0 l\u00e0 \u0111\u1ea1o h\u00e0m b\u1eadc 2 c\u1ee7a g\u1ed1c theo th\u1eddi gian.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu chuy\u1ec3n \u0111\u1ed9ng quay c\u00f3 v\u1eadt c\u1ed1 \u0111\u1ecbnh, khi \u00e1p d\u1ee5ng \u0111\u1ecbnh lu\u1eadt 2 Newton th\u00ec s\u1ebd c\u00f3 c\u00f4ng th\u1ee9c t\u00ednh gia t\u1ed1c g\u00f3c l\u00e0 M=I. \u0110\u00e2y l\u00e0 m\u1ed1i li\u00ean h\u1ec7 gi\u1eefa gia t\u1ed1c g\u00f3c, momen l\u1ef1c, M v\u00e0 momen qu\u00e1n t\u00ednh \u0111\u1ed1i v\u1edbi tr\u1ee5c quay c\u1ee7a v\u1eadt.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1edbi nh\u1eefng th\u00f4ng tin tr\u00ean \u0111\u00e2y, hy v\u1ecdng s\u1ebd gi\u00fap b\u1ea1n tr\u1ea3 l\u1eddi \u0111\u01b0\u1ee3c c\u00e2u h\u1ecfi gia t\u1ed1c tr\u1ecdng tr\u01b0\u1eddng l\u00e0 g\u00ec r\u1ed3i ch\u1ee9. N\u1ebfu th\u1ea5y nh\u1eefng th\u00f4ng tin trong b\u00e0i vi\u1ebft n\u00e0y hay h\u00e3y like, share \u0111\u1ec3 cho b\u1ea1n b\u00e8 m\u00ecnh bi\u1ebft v\u00e0 s\u1eed d\u1ee5ng khi c\u1ea7n nh\u00e9! Ch\u00fac c\u00e1c b\u1ea1n th\u00e0nh c\u00f4ng!<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"<p>Ghi ch\u00fa: T\u00e0i li\u1ec7u tr\u00edch d\u1eabn Gia t\u1ed1c l\u00e0 m\u1ed9t trong nh\u1eefng \u0111\u1ea1i l\u01b0\u1ee3ng v\u1eadt l\u00fd quan tr\u1ecdng, c\u00f3 trong ch\u01b0\u01a1ng tr\u00ecnh v\u1eadt l\u00fd 10. Kh\u00f4ng ch\u1ec9 c\u00f3 \u1ee9ng d\u1ee5ng th\u1ef1c ti\u1ec5n to l\u1edbn trong cu\u1ed9c s\u1ed1ng m\u00e0 c\u00f2n gi\u1eef vai tr\u00f2 quan tr\u1ecdng trong c\u00e1c c\u00f4ng tr\u00ecnh nghi\u00ean c\u1ee9u khoa h\u1ecdc. \u0110\u1ec3 gi\u00fap b\u1ea1n [&hellip;]<\/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-3328","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\/3328","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=3328"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/3328\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=3328"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=3328"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=3328"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}