{"id":11097,"date":"2021-11-22T17:41:36","date_gmt":"2021-11-22T10:41:36","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=11097"},"modified":"2021-11-23T21:13:17","modified_gmt":"2021-11-23T14:13:17","slug":"mat-trang-chuyen-dong-voi-van-toc-bao-nhieu-kilomet-trong-mot-phut","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/mat-trang-chuyen-dong-voi-van-toc-bao-nhieu-kilomet-trong-mot-phut\/","title":{"rendered":"M\u1eb7t tr\u0103ng chuy\u1ec3n \u0111\u1ed9ng v\u1edbi v\u1eadn t\u1ed1c bao nhi\u00eau kilomet trong m\u1ed9t ph\u00fat?"},"content":{"rendered":"\n<p>N\u1ebfu cung c\u1ea5p cho b\u1ea1n m\u1ed9t v\u00e0i con s\u1ed1, c\u00e1c b\u1ea1n s\u1ebd d\u1ec5 d\u00e0ng t\u00ednh to\u00e1n \u0111\u00f3 l\u00e0 m\u1ed9t con s\u1ed1 kh\u1ed5ng l\u1ed3. Gi\u1ea3 thi\u1ebft r\u1eb1ng qu\u1ef9 \u0111\u1ea1o c\u1ee7a M\u1eb7t tr\u0103ng l\u00e0 h\u00ecnh tr\u00f2n, sau \u0111\u00f3 t\u00ednh kho\u1ea3ng th\u1eddi gian m\u00e0 M\u1eb7t tr\u0103ng chuy\u1ec3n \u0111\u1ed9ng h\u1ebft m\u1ed9t v\u00f2ng l\u1ea5y ph\u00fat l\u00e0m \u0111\u01a1n v\u1ecb, ta c\u00f3 th\u1ec3 t\u00ednh ra \u0111\u01b0\u1ee3c t\u1ed1c \u0111\u1ed9 chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a M\u1eb7t tr\u0103ng.<\/p>\n\n\n\n<p>C\u00e1c con s\u1ed1 c\u01a1 b\u1ea3n: kho\u1ea3ng c\u00e1ch trung b\u00ecnh Tr\u00e1i \u0111\u1ea5t M\u1eb7t tr\u0103ng l\u00e0 388.400 km, th\u1eddi gian M\u1eb7t tr\u0103ng chuy\u1ec3n \u0111\u1ed9ng h\u1ebft m\u1ed9t v\u00f2ng qu\u1ef9 \u0111\u1ea1o l\u00e0 27,32166 ng\u00e0y (t\u1ee9c l\u00e0 27 ng\u00e0y gi\u1edd 43 ph\u00fat). C\u00f3 ng\u01b0\u1eddi h\u1ecfi th\u1ebf li\u1ec7u t\u1eeb tu\u1ea9n tr\u0103ng tr\u00f2n \u0111\u1ebfn tu\u1ea9n tr\u0103ng tr\u00f2n m\u1edbi c\u00f3 ph\u1ea3i l\u00e0 29 ng\u00e0y r\u01b0\u1ee1i kh\u00f4ng? \u0110\u00fang v\u1eady. Th\u1eddi gian \u0111\u1ec3 tr\u0103ng tr\u00f2n so v\u1edbi th\u1eddi gian \u0111\u1ec3 M\u1eb7t tr\u0103ng \u0111i h\u1ebft m\u1ed9t v\u00f2ng tr\u00ean qu\u1ef9 \u0111\u1ea1o \u0111i c\u00f3 d\u00e0i h\u01a1n.<\/p>\n\n\n\n<p>N\u1ebfu cho qu\u1ef9 \u0111\u1ea1o c\u1ee7a M\u1eb7t tr\u0103ng tr\u00f2n so v\u1edbi th\u1eddi gian \u0111\u1ec3 M\u1eb7t tr\u0103ng \u0111i h\u1ebft m\u1ed9t v\u00f2ng qu\u1ef9 \u0111\u1ea1o th\u00ec c\u00f3 d\u00e0i h\u01a1n.<\/p>\n\n\n\n<p>N\u1ebfu cho qu\u1ef9 \u0111\u1ea1o c\u1ee7a M\u1eb7t tr\u0103ng l\u00e0 h\u00ecnh tr\u00f2n th\u00ec kho\u1ea3ng \u0111\u01b0\u1eddng \u0111i tr\u00ean qu\u1ef9 \u0111\u1ea1o c\u1ee7a M\u1eb7t tr\u0103ng s\u1ebd l\u00e0 384.400 km x 2 x 3,1414 = 2.415.256 km. N\u1ebfu \u0111\u1ed5i kho\u1ea3ng th\u1eddi gian M\u1eb7t tr\u0103ng di chuy\u1ec3n h\u1ebft m\u1ed9t v\u00f2ng ra \u0111\u01a1n v\u1ecb ph\u00fat ta c\u00f3: 27,321256 x 24 x 60 = 39343 ph\u00fat. D\u1ef1a v\u00e0o c\u00e1c s\u1ed1 li\u1ec7u n\u00e0y ta c\u00f3 th\u1ec3 t\u00ednh ra t\u1ed1c \u0111\u1ed9 chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a M\u1eb7t tr\u0103ng tr\u00ean qu\u1ef9 \u0111\u1ea1o s\u1ebd l\u00e0: 2415256 : 39343 = 61,38 km ho\u1eb7c 1023 m\/s<\/p>\n\n\n\n<p>T\u1ed1c \u0111\u1ed9 n\u00e0y nhanh g\u1ea5p 3 l\u1ea9n t\u1ed1c \u0111\u1ed9 chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a Tr\u00e1i \u0111\u1ea5t tr\u00ean qu\u1ef9 \u0111\u1ea1o (l\u00e0 340 m\/s). Tuy nhi\u00ean, \u0111\u00f3 ch\u1ec9 l\u00e0 t\u1ed1c \u0111\u1ed9 trung b\u00ecnh, v\u00ec qu\u1ef9 \u0111\u1ea1o c\u1ee7a M\u1eb7t tr\u0103ng l\u1ea1i c\u00f3 h\u00ecnh elip, th\u1ef1c t\u1ebf t\u1ed1c \u0111\u1ed9 chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a M\u1eb7t tr\u0103ng l\u00fac nhanh l\u00fac ch\u1eadm; l\u00fac \u1edf g\u1ea9n Tr\u00e1i \u0111\u1ea5t nh\u1ea5t t\u1ed1c \u0111\u1ed9 chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a M\u1eb7t tr\u0103ng l\u00e0 64,85 km\/s, c\u00f2n l\u00fac \u1edf xa Tr\u00e1i \u0111\u1ea5t nh\u1ea5t t\u1ed1c \u0111\u1ed9 chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a M\u1eb7t tr\u0103ng s\u1ebd l\u00e0 58,10 km\/s.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>N\u1ebfu cung c\u1ea5p cho b\u1ea1n m\u1ed9t v\u00e0i con s\u1ed1, c\u00e1c b\u1ea1n s\u1ebd d\u1ec5 d\u00e0ng t\u00ednh to\u00e1n \u0111\u00f3 l\u00e0 m\u1ed9t con s\u1ed1 kh\u1ed5ng l\u1ed3. Gi\u1ea3 thi\u1ebft r\u1eb1ng qu\u1ef9 \u0111\u1ea1o c\u1ee7a M\u1eb7t tr\u0103ng l\u00e0 h\u00ecnh tr\u00f2n, sau \u0111\u00f3 t\u00ednh kho\u1ea3ng th\u1eddi gian m\u00e0 M\u1eb7t tr\u0103ng chuy\u1ec3n \u0111\u1ed9ng h\u1ebft m\u1ed9t v\u00f2ng l\u1ea5y ph\u00fat l\u00e0m \u0111\u01a1n v\u1ecb, ta c\u00f3 [&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":[1,15],"tags":[],"class_list":["post-11097","post","type-post","status-publish","format-standard","hentry","category-general","category-hoi-dap-khoa-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/11097","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=11097"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/11097\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=11097"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=11097"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=11097"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}