{"id":5582,"date":"2021-11-20T09:32:11","date_gmt":"2021-11-20T02:32:11","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=5582"},"modified":"2021-11-20T12:41:13","modified_gmt":"2021-11-20T05:41:13","slug":"vi-sao-trong-dieu-kien-nguoc-gio-thuyen-buom-van-co-the-chay-toi-duoc","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/vi-sao-trong-dieu-kien-nguoc-gio-thuyen-buom-van-co-the-chay-toi-duoc\/","title":{"rendered":"V\u00ec sao trong \u0111i\u1ec1u ki\u1ec7n ng\u01b0\u1ee3c gi\u00f3 thuy\u1ec1n bu\u1ed3m v\u1eabn c\u00f3 th\u1ec3 ch\u1ea1y t\u1edbi \u0111\u01b0\u1ee3c?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Tr\u00ean m\u1eb7t s\u00f4ng gi\u00f3 th\u1ed5i \u00e0o \u1ea1t, tr\u1eddi n\u01b0\u1edbc m\u1ed9t m\u00e0u, c\u1ea3nh t\u01b0\u1ee3ng thuy\u1ec1n b\u00e8 xu\u00f4i ng\u01b0\u1ee3c, \u0111\u1ea1p gi\u00f3 l\u01b0\u1edbt s\u00f3ng, tr\u00f4ng th\u1eadt h\u00f9ng tr\u00e1ng. Khi \u1ea5y, b\u1ea1n c\u00f3 \u0111\u1ec3 \u00fd hay kh\u00f4ng \u0111\u1ebfn c\u00e1i c\u1ea3nh: khi thuy\u1ec1n gi\u01b0\u01a1ng bu\u1ed3m ch\u1ea1y t\u1edbi, tr\u1eeb nh\u1eefng chi\u1ebfc xu\u00f4i gi\u00f3 lao nhanh, nh\u1eefng chi\u1ebfc ng\u01b0\u1ee3c gi\u00f3 c\u0169ng c\u00f3 th\u1ec3 ch\u1ea1y t\u1edbi tr\u01b0\u1edbc. Ch\u00fang ta bi\u1ebft r\u1eb1ng, khi thuy\u1ec1n bu\u1ed3m ch\u1ea1y xu\u00f4i gi\u00f3 l\u00e0 d\u1ef1a v\u00e0o l\u1ef1c c\u1ee7a gi\u00f3 \u0111\u1ed1i v\u1edbi c\u00e1nh bu\u1ed3m, \u0111\u1ea9y cho thuy\u1ec1n ch\u1ea1y t\u1edbi. Nh\u01b0ng trong \u0111i\u1ec1u ki\u1ec7n ng\u01b0\u1ee3c gi\u00f3, v\u00ec sao thuy\u1ec1n bu\u1ed3m v\u1eabn c\u00f3 th\u1ec3 ch\u1ea1y t\u1edbi nh\u01b0 th\u01b0\u1eddng nh\u1ec9?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Th\u1ef1c ra, ch\u1ea1y thuy\u1ec1n trong khi ng\u01b0\u1ee3c gi\u00f3 c\u0169ng l\u00e0 d\u1ef1a v\u00e0o \u0111\u1ed9ng l\u1ef1c c\u1ee7a gi\u00f3 t\u00e1c \u0111\u1ed9ng l\u00ean thuy\u1ec1n. \u0110i\u1ec1u \u0111\u00f3 \u0111\u00f2i h\u1ecfi ng\u01b0\u1eddi l\u00e1i thuy\u1ec1n ph\u1ea3i \u0111i\u1ec1u ch\u1ec9nh t\u1ed1t h\u01b0\u1edbng c\u1ee7a th\u00e2n thuy\u1ec1n v\u00e0 c\u00e1nh bu\u1ed3m, l\u1ee3i d\u1ee5ng nguy\u00ean l\u00ed t\u1ed5ng h\u1ee3p v\u00e0 ph\u00e2n t\u00edch l\u1ef1c m\u1ed9t c\u00e1ch kh\u00e9o l\u00e9o \u0111\u1ec3 cho gi\u00f3 l\u00e0m ra l\u1ef1c.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gi\u1ea3 thi\u1ebft c\u00f3 m\u1ed9t lu\u1ed3ng gi\u00f3 m\u1ea1nh th\u1ed5i ng\u01b0\u1ee3c t\u1eeb ph\u00eda tr\u01b0\u1edbc t\u1edbi, ng\u01b0\u1eddi l\u00e1i thuy\u1ec1n thu\u1eadn th\u1ebf l\u1ea7n l\u01b0\u1ee3t \u0111i\u1ec1u ch\u1ec9nh m\u0169i thuy\u1ec1n v\u00e0 m\u1eb7t bu\u1ed3m \u0111\u1ebfn hai h\u01b0\u1edbng kh\u00e1c nhau B v\u00e0 P \u0111\u1ec3 h\u1ee9ng \u0111\u00f3n lu\u1ed3ng gi\u00f3 ng\u01b0\u1ee3c n\u00e0y. Gi\u00f3 th\u1ed5i l\u00ean m\u1eb7t bu\u1ed3m, l\u1ef1c gi\u00f3 W ph\u00e2n t\u00edch th\u00e0nh hai l\u1ef1c th\u00e0nh ph\u1ea7n th\u1eb3ng g\u00f3c nhau l\u00e0 P&#8217; v\u00e0 R&#8217;, trong \u0111\u00f3 l\u1ef1c th\u00e0nh ph\u1ea7n P&#8217; th\u1ed5i l\u01b0\u1edbt l\u00ean m\u1eb7t bu\u1ed3m, kh\u00f4ng g\u00e2y ra \u1ea3nh h\u01b0\u1edfng \u0111\u1ed1i v\u1edbi thuy\u1ec1n bu\u1ed3m, l\u1ef1c th\u00e0nh ph\u1ea7n R&#8217; kia t\u00e1c \u0111\u1ed9ng th\u1eb3ng g\u00f3c l\u00ean m\u1eb7t bu\u1ed3m. \u00c1p l\u1ef1c ch\u00ednh R&#8217; n\u00e0y l\u1ea1i c\u00f3 th\u1ec3 ph\u00e2n t\u00edch th\u00e0nh hai l\u1ef1c th\u00e0nh ph\u1ea7n A v\u00e0 B th\u1eb3ng g\u00f3c nhau v\u00e0 A v\u1eeba \u0111\u00fang th\u1eb3ng g\u00f3c v\u1edbi th\u00e2n thuy\u1ec1n. L\u1ef1c n\u00e0y \u0111\u1ea9y thuy\u1ec1n theo h\u01b0\u1edbng n\u1eb1m ngang.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Do tr\u00ean h\u01b0\u1edbng n\u1eb1m ngang, l\u1ef1c c\u1ea3n c\u1ee7a n\u01b0\u1edbc \u0111\u1ed1i v\u1edbi thuy\u1ec1n r\u1ea5t l\u1edbn, n\u00ean l\u1ef1c A \u0111\u1ea9y thuy\u1ec1n \u0111i ngang c\u00f9ng v\u1edbi l\u1ef1c c\u1ea3n c\u1ee7a n\u01b0\u1edbc \u0111\u1ed1i v\u1edbi thuy\u1ec1n tri\u1ec7t ti\u00eau l\u1eabn nhau. L\u1ef1c th\u00e0nh ph\u1ea7n B c\u1ee7a R&#8217; theo h\u01b0\u1edbng d\u1ecdc c\u1ee7a thuy\u1ec1n. \u0110\u00f3 ch\u00ednh l\u00e0 l\u1ef1c c\u1ea5u th\u00e0nh \u0111\u1ed9ng l\u1ef1c \u0111\u1ea9y thuy\u1ec1n \u0111i t\u1edbi. G\u1ed9p c\u00e1c \u0111i\u1ec1u n\u00f3i tr\u00ean, khi ng\u01b0\u1eddi l\u00e1i \u0111i\u1ec1u ch\u1ec9nh thuy\u1ec1n v\u00e0 bu\u1ed3m \u0111\u00fang \u0111\u1ebfn ch\u1ed7 c\u1ea7n thi\u1ebft, d\u01b0\u1edbi t\u00e1c \u0111\u1ed9ng li\u00ean h\u1ee3p c\u1ee7a gi\u00f3 ng\u01b0\u1ee3c v\u00e0 l\u1ef1c c\u1ea3n, thuy\u1ec1n bu\u1ed3m l\u1ea1i nh\u1eadn \u0111\u01b0\u1ee3c \u0111\u1ed9ng l\u1ef1c \u0111i t\u1edbi. Khi \u1ea5y, tuy l\u00e0 thuy\u1ec1n \u0111i t\u1edbi, song do m\u0169i thuy\u1ec1n nghi\u00eang l\u1ec7ch \u0111i m\u1ed9t g\u00f3c \u0111\u1ed9, n\u00ean n\u00f3 l\u1ec7ch kh\u1ecfi h\u01b0\u1edbng \u0111i. Ch\u1eb3ng c\u00f3 g\u00ec ph\u1ea3i lo v\u1ec1 \u0111i\u1ec1u \u0111\u00f3 c\u1ea3. \u0110\u1ee3i cho thuy\u1ec1n ch\u1ea1y \u0111\u01b0\u1ee3c m\u1ed9t qu\u00e3ng \u0111\u01b0\u1eddng, l\u1ea1i quay m\u0169i thuy\u1ec1n v\u00e0 c\u00e1nh bu\u1ed3m h\u01b0\u1edbng v\u1ec1 ph\u00eda kh\u00e1c \u0111\u1ec3 h\u1ee9ng \u0111\u00f3n gi\u00f3 ng\u01b0\u1ee3c th\u00ec v\u1eabn c\u00f3 th\u1ec3 nh\u1eadn \u0111\u01b0\u1ee3c \u0111\u1ed9ng l\u1ef1c \u0111i t\u1edbi t\u1eeb trong gi\u00f3 ng\u01b0\u1ee3c nh\u01b0 c\u0169. V\u00ec v\u1eady, ch\u00fang ta tr\u00f4ng th\u1ea5y c\u00e1c thuy\u1ec1n bu\u1ed3m \u0111\u1ec1u l\u00e0 qu\u00e0nh qua qu\u00e0nh l\u1ea1i theo h\u00ecnh ch\u1eef S v\u00e0 \u0111i t\u1edbi trong \u0111i\u1ec1u ki\u1ec7n ng\u01b0\u1ee3c gi\u00f3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Khi thuy\u1ec1n bu\u1ed3m ch\u1ea1y trong gi\u00f3 ng\u01b0\u1ee3c, l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh thuy\u1ec1n v\u00e0 bu\u1ed3m \u0111\u1ebfn v\u1ecb tr\u00ed t\u1ed1t nh\u1ea5t, nh\u1eb1m nh\u1eadn \u0111\u01b0\u1ee3c \u0111\u1ed9ng l\u1ef1c l\u1edbn nh\u1ea5t t\u1eeb trong gi\u00f3 ng\u01b0\u1ee3c nh\u1ec9? Th\u1ef1c nghi\u1ec7m \u0111\u00e3 ch\u1ec9 r\u00f5: n\u1ebfu \u0111i\u1ec1u ch\u1ec9nh m\u1eb7t bu\u1ed3m \u0111\u1ebfn \u0111\u01b0\u1eddng chia \u0111\u1ec1u c\u1ee7a g\u00f3c k\u1eb9p gi\u1eefa gi\u00f3 v\u00e0 th\u00e2n thuy\u1ec1n th\u00ec thuy\u1ec1n bu\u1ed3m c\u00f3 th\u1ec3 nh\u1eadn \u0111\u01b0\u1ee3c \u0111\u1ed9ng l\u1ef1c l\u1edbn nh\u1ea5t. Song mu\u1ed1n \u0111i\u1ec1u ch\u1ec9nh \u0111\u01b0\u1ee3c nh\u01b0 v\u1eady kh\u00f4ng ph\u1ea3i l\u00e0 \u0111i\u1ec1u d\u1ec5 l\u00e0m. C\u00e1i \u0111\u00f3 ph\u1ea3i ho\u00e0n to\u00e0n d\u1ef1a v\u00e0o kinh nghi\u1ec7m \u0111i thuy\u1ec1n nhi\u1ec1u n\u0103m c\u1ee7a ng\u01b0\u1eddi l\u00e1i. \u0110\u00fang l\u00e0: \u0111i thuy\u1ec1n ng\u01b0\u1ee3c gi\u00f3, kh\u00f4ng ti\u1ebfn th\u00ec l\u00f9i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1eeb kh\u00f3a: Ng\u01b0\u1ee3c gi\u00f3; T\u1ed5ng h\u1ee3p l\u1ef1c v\u00e0 ph\u00e2n t\u00edch l\u1ef1c; L\u1ef1c th\u00e0nh ph\u1ea7n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"<p>Tr\u00ean m\u1eb7t s\u00f4ng gi\u00f3 th\u1ed5i \u00e0o \u1ea1t, tr\u1eddi n\u01b0\u1edbc m\u1ed9t m\u00e0u, c\u1ea3nh t\u01b0\u1ee3ng thuy\u1ec1n b\u00e8 xu\u00f4i ng\u01b0\u1ee3c, \u0111\u1ea1p gi\u00f3 l\u01b0\u1edbt s\u00f3ng, tr\u00f4ng th\u1eadt h\u00f9ng tr\u00e1ng. Khi \u1ea5y, b\u1ea1n c\u00f3 \u0111\u1ec3 \u00fd hay kh\u00f4ng \u0111\u1ebfn c\u00e1i c\u1ea3nh: khi thuy\u1ec1n gi\u01b0\u01a1ng bu\u1ed3m ch\u1ea1y t\u1edbi, tr\u1eeb nh\u1eefng chi\u1ebfc xu\u00f4i gi\u00f3 lao nhanh, nh\u1eefng chi\u1ebfc ng\u01b0\u1ee3c gi\u00f3 c\u0169ng 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":[15,7],"tags":[],"class_list":["post-5582","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc","category-vat-ly"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/5582","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=5582"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/5582\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=5582"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=5582"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=5582"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}