{"id":18836,"date":"2025-07-06T16:45:05","date_gmt":"2025-07-06T09:45:05","guid":{"rendered":"https:\/\/www.ckconitsha.com\/vn\/?p=18836"},"modified":"2025-07-07T02:05:17","modified_gmt":"2025-07-06T19:05:17","slug":"kien-thuc-tu-a-z-ve-momen-luc-khong-the-bo-lo","status":"publish","type":"post","link":"https:\/\/www.ckconitsha.com\/vn\/kien-thuc-tu-a-z-ve-momen-luc-khong-the-bo-lo\/","title":{"rendered":"Ki\u1ebfn th\u1ee9c t\u1eeb A-Z v\u1ec1 Momen L\u1ef1c kh\u00f4ng th\u1ec3 b\u1ecf l\u1ee1"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_79_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.ckconitsha.com\/vn\/kien-thuc-tu-a-z-ve-momen-luc-khong-the-bo-lo\/#Khoanh_khac_la_gi\" >Kho\u1ea3nh kh\u1eafc l\u00e0 g\u00ec?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.ckconitsha.com\/vn\/kien-thuc-tu-a-z-ve-momen-luc-khong-the-bo-lo\/#Cong_thuc_Momenel\" >C\u00f4ng th\u1ee9c Momenel<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.ckconitsha.com\/vn\/kien-thuc-tu-a-z-ve-momen-luc-khong-the-bo-lo\/#Quy_tac_Momenel_dieu_kien_can_bang_cua_mot_truc_co_dinh\" >Quy t\u1eafc Momenel (\u0111i\u1ec1u ki\u1ec7n c\u00e2n b\u1eb1ng c\u1ee7a m\u1ed9t tr\u1ee5c c\u1ed1 \u0111\u1ecbnh)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.ckconitsha.com\/vn\/kien-thuc-tu-a-z-ve-momen-luc-khong-the-bo-lo\/#Ung_dung_cua_Momena_trong_cuoc_song\" >\u1ee8ng d\u1ee5ng c\u1ee7a Momena trong cu\u1ed9c s\u1ed1ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.ckconitsha.com\/vn\/kien-thuc-tu-a-z-ve-momen-luc-khong-the-bo-lo\/#Bai_tap_Momenel_Vat_ly_10\" >B\u00e0i t\u1eadp Momenel (V\u1eadt l\u00fd 10)<\/a><\/li><\/ul><\/nav><\/div>\n<\/p>\n<p dir=\"ltr\">Trong ch\u01b0\u01a1ng tr\u00ecnh v\u1eadt l\u00fd 10, h\u1ecd s\u1ebd t\u00ecm hi\u1ec3u v\u1ec1 m\u00f4 -men xo\u1eafn. \u0110\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 c\u00e1c kh\u00e1i ni\u1ec7m, c\u00f4ng th\u1ee9c, quy t\u1eafc v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a s\u1ed1 l\u01b0\u1ee3ng n\u00e0y trong cu\u1ed9c s\u1ed1ng, h\u00e3y \u0111\u1ec3 kh\u1ec9 \u0111\u1ecdc b\u00e0i vi\u1ebft t\u00f3m t\u1eaft ki\u1ebfn \u200b\u200bth\u1ee9c v\u1ec1 s\u1ee9c m\u1ea1nh momena ngay l\u1eadp t\u1ee9c!<\/p>\n<p>                                                                    <img decoding=\"async\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img_default\/monkey3.png\" alt=\"\"><\/p>\n<p class=\"title\">H\u00e0ng tri\u1ec7u tr\u1ebb em \u0111\u00e3 ph\u00e1t tri\u1ec3n c\u00e1c k\u1ef9 n\u0103ng ng\u00f4n ng\u1eef c\u1ee7a ch\u00fang th\u00f4ng qua c\u00e1c \u1ee9ng d\u1ee5ng h\u1ecdc t\u1eadp c\u1ee7a kh\u1ec9<\/p>\n<p class=\"description\">\u0110\u0103ng k\u00fd ngay \u0111\u1ec3 \u0111\u01b0\u1ee3c t\u01b0 v\u1ea5n mi\u1ec5n ph\u00ed v\u1ec1 c\u00e1c s\u1ea3n ph\u1ea9m v\u00e0 tuy\u1ebfn h\u1ecdc h\u1ecdc cho tr\u1ebb em.<\/p>\n<p>                                                                            *Vui l\u00f2ng ki\u1ec3m tra t\u00ean \u0111\u1ea7y \u0111\u1ee7 c\u1ee7a b\u1ea1n *Vui l\u00f2ng ki\u1ec3m tra s\u1ed1 \u0111i\u1ec7n tho\u1ea1i h\u01a1n 2.000 t\u1eeb &amp; 6.000 c\u00e2u ti\u1ebfng Anh \u0111\u1ec3 ph\u00e1t tri\u1ec3n to\u00e0n di\u1ec7n 4 k\u1ef9 n\u0103ng ti\u1ebfng Anh t\u1ed1t &#8211; ti\u1ebfng Anh theo c\u00e1c ph\u01b0\u01a1ng ph\u00e1p hi\u1ec7n \u0111\u1ea1i ph\u00e1t tri\u1ec3n kh\u1ea3 n\u0103ng EQ &amp; Vi\u1ec7t Nam *B\u1ea1n ch\u01b0a ch\u1ecdn b\u1ea5t k\u1ef3 m\u1ee5c n\u00e0o! \u0110\u0103ng k\u00fd t\u01b0 v\u1ea5n mi\u1ec5n ph\u00ed<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/momen-luc-6.jpg\" alt=\"T\u00f3m t\u1eaft ki\u1ebfn \u200b\u200bth\u1ee9c v\u1ec1 m\u00f4 -men xo\u1eafn. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"800\" height=\"450\"><\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Khoanh_khac_la_gi\"><\/span>Kho\u1ea3nh kh\u1eafc l\u00e0 g\u00ec? <span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">\u0110\u1ecbnh ngh\u0129a: Momenel l\u00e0 m\u1ed9t \u0111\u1ea1i l\u01b0\u1ee3ng v\u1eadt l\u00fd \u0111\u01b0\u1ee3c \u0111\u1eb7c tr\u01b0ng b\u1edfi \u1ea3nh h\u01b0\u1edfng c\u1ee7a vi\u1ec7c xoay quanh tr\u1ee5c c\u1ed1 \u0111\u1ecbnh c\u1ee7a l\u1ef1c. M\u00f4 -men xo\u1eafn \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng s\u1ea3n ph\u1ea9m c\u1ee7a l\u1ef1c v\u1edbi cu\u1ed9c t\u1ea5n c\u00f4ng c\u1ee7a n\u00f3. <\/p>\n<p dir=\"ltr\">Bi\u1ec3u t\u01b0\u1ee3ng c\u1ee7a l\u1ef1c l\u01b0\u1ee3ng: m<\/p>\n<p dir=\"ltr\">\u0110\u01a1n v\u1ecb: NM<\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Cong_thuc_Momenel\"><\/span>C\u00f4ng th\u1ee9c Momenel <span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">L\u1ef1c l\u01b0\u1ee3ng c\u00f3 c\u00f4ng th\u1ee9c sau:<\/p>\n<table style=\"border-collapse: collapse;width: 100%\" border=\"1\">\n<tr>\n<td style=\"width: 99.0477%;text-align: center;border: 0.5px solid #4e4c50\">\n<p>M = fd<\/p>\n<\/td>\n<\/tr>\n<\/table>\n<p dir=\"ltr\">Trong \u0111\u00f3: <\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">  F l\u00e0 c\u01b0\u1eddng \u0111\u1ed9 c\u1ee7a l\u1ef1c (n)<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">  D l\u00e0 cu\u1ed9c t\u1ea5n c\u00f4ng (M)<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">  M l\u00e0 momenel (nm)<\/p>\n<\/li>\n<\/ul>\n<p dir=\"ltr\">L\u01afU \u00dd: C\u00e1nh tay b\u1eb1ng kho\u1ea3ng c\u00e1ch t\u1eeb trung t\u00e2m quay \u0111\u1ebfn gi\u00e1 c\u1ee7a l\u1ef1c. <\/p>\n<p dir=\"ltr\">B\u00ecnh lu\u1eadn: <\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">  Khi d = 0 =&gt; m = 0, n\u1ebfu gi\u00e1 c\u1ee7a l\u1ef1c \u0111i qua t\u00e2m xoay, l\u1ef1c s\u1ebd kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng \u0111\u1ec3 xoay. <\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">  Khi m = fd, mu\u1ed1n t\u0103ng m, ch\u00fang ta c\u00f3 th\u1ec3 t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 c\u1ee7a l\u1ef1c ho\u1eb7c t\u0103ng chi\u1ec1u d\u00e0i c\u1ee7a c\u00e1nh tay. <\/p>\n<\/li>\n<\/ul>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Quy_tac_Momenel_dieu_kien_can_bang_cua_mot_truc_co_dinh\"><\/span>Quy t\u1eafc Momenel (\u0111i\u1ec1u ki\u1ec7n c\u00e2n b\u1eb1ng c\u1ee7a m\u1ed9t tr\u1ee5c c\u1ed1 \u0111\u1ecbnh) <span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">Quy t\u1eafc: Khi b\u1ea1n mu\u1ed1n cho m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng c\u1ed1 \u0111\u1ecbnh \u1edf tr\u1ea1ng th\u00e1i c\u00e2n b\u1eb1ng, t\u1ed5ng c\u1ee7a m\u00f4 -men xo\u1eafn c\u00f3 xu h\u01b0\u1edbng bi\u1ebfn \u0111\u1ed1i t\u01b0\u1ee3ng theo c\u00f9ng m\u1ed9t chi\u1ec1u theo chi\u1ec1u kim \u0111\u1ed3ng h\u1ed3 b\u1eb1ng t\u1ed5ng c\u1ee7a m\u00f4 -men xo\u1eafn c\u00f3 xu h\u01b0\u1edbng l\u00e0m cho \u0111\u1ed1i t\u01b0\u1ee3ng quay theo h\u01b0\u1edbng ng\u01b0\u1ee3c chi\u1ec1u theo chi\u1ec1u kim \u0111\u1ed3ng h\u1ed3.<\/p>\n<p dir=\"ltr\">&#8211; Bi\u1ec3u th\u1ee9c: M1 = M2 F1D1 = F2D2<\/p>\n<p dir=\"ltr\"><img loading=\"lazy\" decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/momen-luc-2.jpg\" alt=\"Quy t\u1eafc Momenel. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"800\" height=\"500\"><\/p>\n<p dir=\"ltr\">&#8211; Trong tr\u01b0\u1eddng h\u1ee3p \u0111\u1ed1i t\u01b0\u1ee3ng ph\u1ea3i ch\u1ecbu nhi\u1ec1u l\u1ef1c l\u01b0\u1ee3ng:<\/p>\n<p dir=\"ltr\">F1d1+f2d2+&#8230; = f\u20321d\u20321+f\u20322d\u20322+&#8230;<\/p>\n<p dir=\"ltr\">Ghi ch\u00fa:<\/p>\n<p dir=\"ltr\">&#8211; Quy t\u1eafc Momenel c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng cho c\u00e1c tr\u01b0\u1eddng h\u1ee3p trong \u0111\u00f3 m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng kh\u00f4ng c\u00f3 tr\u1ee5c c\u1ed1 \u0111\u1ecbnh, sau \u0111\u00f3 ch\u00fang ta s\u1ebd th\u1ea5y \u0111\u1ed1i t\u01b0\u1ee3ng xung quanh tr\u1ee5c quay t\u1ee9c th\u1eddi.<\/p>\n<p dir=\"ltr\">&#8211; Khi m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng r\u1eafn quay xung quanh m\u1ed9t tr\u1ee5c c\u1ed1 \u0111\u1ecbnh, t\u1ea5t c\u1ea3 c\u00e1c \u0111i\u1ec3m c\u1ee7a \u0111\u1ed1i t\u01b0\u1ee3ng s\u1ebd c\u00f3 c\u00f9ng t\u1ed1c \u0111\u1ed9 g\u00f3c.<\/p>\n<ul>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">  = Const: \u0111\u1ed1i t\u01b0\u1ee3ng xoay \u0111\u1ec1u.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">  T\u0103ng d\u1ea7n d\u1ea7n: \u0111\u1ed1i t\u01b0\u1ee3ng quay nhanh h\u01a1n.<\/p>\n<\/li>\n<li dir=\"ltr\">\n<p dir=\"ltr\" role=\"presentation\">  D\u1ea7n d\u1ea7n gi\u1ea3m d\u1ea7n: \u0111\u1ed1i t\u01b0\u1ee3ng quay t\u1eeb t\u1eeb.<\/p>\n<\/li>\n<\/ul>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Ung_dung_cua_Momena_trong_cuoc_song\"><\/span>\u1ee8ng d\u1ee5ng c\u1ee7a Momena trong cu\u1ed9c s\u1ed1ng <span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">C\u00e1c tay n\u1eafm c\u1eeda th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp ra kh\u1ecfi b\u1ea3n l\u1ec1 (ho\u1eb7c tr\u1ee5c c\u1ee7a c\u00e1nh c\u1eeda) \u0111\u1ec3 t\u0103ng m\u00f4 -men xo\u1eafn (t\u0103ng hi\u1ec7u \u1ee9ng quay c\u1ee7a l\u1ef1c \u0111\u1ec3 ch\u00fang ta c\u00f3 th\u1ec3 m\u1edf c\u1eeda d\u1ec5 d\u00e0ng h\u01a1n).<\/p>\n<p dir=\"ltr\"><img loading=\"lazy\" decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/momen-luc-3.jpg\" alt=\"Tay c\u1ea7m c\u1eeda \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp c\u00e1ch xa b\u1ea3n l\u1ec1 \u0111\u1ec3 t\u0103ng m\u00f4 -men xo\u1eafn. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"800\" height=\"500\"><\/p>\n<p dir=\"ltr\">Trong c\u00e1c k\u1ef9 thu\u1eadt, c\u00e1c c\u1edd l\u00ea hi\u1ec7n t\u1ea1i \u0111\u01b0\u1ee3c t\u1ea1o th\u00e0nh nhi\u1ec1u lo\u1ea1i kh\u00e1c nhau ph\u00f9 h\u1ee3p cho t\u1eebng lo\u1ea1i \u1ed1c kh\u00e1c nhau. C\u1edd l\u00ea c\u00e0ng l\u1edbn v\u1edbi c\u00e1nh tay D, \u1ed1c c\u00e0ng si\u1ebft ch\u1eb7t s\u1ebd m\u1edf ra, b\u1edfi v\u00ec l\u1ef1c c\u1ee7a c\u00e1nh tay n\u1ea1c c\u00e0ng l\u1edbn, m\u00f4 -men xo\u1eafn c\u00e0ng l\u1edbn (\u1ea3nh h\u01b0\u1edfng c\u1ee7a vi\u1ec7c xoay v\u00f2ng quay c\u00e0ng l\u1edbn).<\/p>\n<p dir=\"ltr\"><img loading=\"lazy\" decoding=\"async\" class=\"lazyload\" src=\"https:\/\/external-content.duckduckgo.com\/iu\/?u=https:\/\/vnmedia2.monkeyuni.net\/upload\/web\/img\/momen-luc-4.jpg\" alt=\"    C\u1edd l\u00ea l\u1edbn v\u00e0 nh\u1ecf ph\u00f9 h\u1ee3p cho t\u1eebng lo\u1ea1i \u1ed1c kh\u00e1c nhau. (\u1ea2nh: B\u1ed9 s\u01b0u t\u1eadp Internet)\" width=\"800\" height=\"500\"><\/p>\n<p dir=\"ltr\">Xem th\u00eam: N\u1ed9i dung b\u1ea3o t\u1ed3n lu\u1eadt c\u1ee7a c\u00e1c b\u00e0i t\u1eadp th\u1ef1c h\u00e0nh v\u00e0 th\u1ef1c h\u00e0nh v\u1edbi c\u00e2u tr\u1ea3 l\u1eddi (V\u1eadt l\u00fd 10)<\/p>\n<h2 dir=\"ltr\"><span class=\"ez-toc-section\" id=\"Bai_tap_Momenel_Vat_ly_10\"><\/span>B\u00e0i t\u1eadp Momenel (V\u1eadt l\u00fd 10)<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p dir=\"ltr\">B\u00e0i h\u1ecdc 1: C\u00e1nh tay c\u1ee7a l\u1ef1c l\u01b0\u1ee3ng b\u1eb1ng nhau<\/p>\n<p dir=\"ltr\">            A. Kho\u1ea3ng c\u00e1ch t\u1eeb tr\u1ee5c quay \u0111\u1ebfn \u0111i\u1ec3m \u0111\u1eb7t c\u1ee7a l\u1ef1c. <\/p>\n<p dir=\"ltr\">            B. Kho\u1ea3ng c\u00e1ch t\u1eeb tr\u1ee5c quay \u0111\u1ebfn trung t\u00e2m c\u1ee7a \u0111\u1ed1i t\u01b0\u1ee3ng. <\/p>\n<p dir=\"ltr\">            C. Kho\u1ea3ng c\u00e1ch t\u1eeb tr\u1ee5c quay \u0111\u1ebfn gi\u00e1 l\u1ef1c. <\/p>\n<p dir=\"ltr\">            D. Kho\u1ea3ng c\u00e1ch t\u1eeb t\u00e2m c\u1ee7a \u0111\u1ed1i t\u01b0\u1ee3ng \u0111\u1ebfn gi\u00e1 c\u1ee7a tr\u1ee5c quay. <\/p>\n<p dir=\"ltr\">Tr\u1ea3 l\u1eddi: <\/p>\n<p dir=\"ltr\">Ch\u1ecdn c\u00e2u h\u1ecfi c<\/p>\n<p dir=\"ltr\">B\u00e0i 2: Kho\u1ea3nh kh\u1eafc l\u1ef1c t\u00e1c d\u1ee5ng l\u00ean m\u1ed9t v\u1eadt c\u00f3 tr\u1ee5c c\u1ed1 \u0111\u1ecbnh l\u00e0 s\u1ed1 l\u01b0\u1ee3ng <\/p>\n<p dir=\"ltr\">            A. \u0110\u1eb7c tr\u01b0ng cho hi\u1ec7u \u1ee9ng h\u00e0nh \u0111\u1ed9ng c\u1ee7a l\u1ef1c v\u00e0 \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng s\u1ea3n ph\u1ea9m v\u00e0 c\u00e1nh tay c\u1ee7a n\u00f3. <\/p>\n<p dir=\"ltr\">            B. \u0110\u1eb7c tr\u01b0ng cho hi\u1ec7u \u1ee9ng h\u00e0nh \u0111\u1ed9ng c\u1ee7a l\u1ef1c l\u01b0\u1ee3ng v\u00e0 \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng s\u1ea3n ph\u1ea9m c\u1ee7a l\u1ef1c v\u00e0 c\u00e1nh tay c\u1ee7a n\u00f3. C\u00f3 m\u1ed9t \u0111\u01a1n v\u1ecb (n\/m). <\/p>\n<p dir=\"ltr\">            C. \u0110\u1eb7c tr\u01b0ng cho s\u1ee9c m\u1ea1nh c\u1ee7a l\u1ef1c. <\/p>\n<p dir=\"ltr\">            D. lu\u00f4n c\u00f3 gi\u00e1 tr\u1ecb \u00e2m.<\/p>\n<p dir=\"ltr\">Tr\u1ea3 l\u1eddi:<\/p>\n<p dir=\"ltr\">Ch\u1ecdn c\u00e2u h\u1ecfi b<\/p>\n<p dir=\"ltr\">B\u00e0i 3: Ph\u00e1t bi\u1ec3u n\u00e0o sau \u0111\u00e2y ph\u00f9 h\u1ee3p v\u1edbi quy t\u1eafc m\u00f4 -men xo\u1eafn? <\/p>\n<p dir=\"ltr\">            A. N\u1ebfu m\u1ed9t tr\u1ee5c c\u1ed1 \u0111\u1ecbnh \u0111\u01b0\u1ee3c c\u00e2n b\u1eb1ng, t\u1ed5ng m\u00f4 -men xo\u1eafn c\u1ee7a c\u00e1c l\u1ef1c c\u00f3 xu h\u01b0\u1edbng bi\u1ebfn v\u1eadt theo m\u1ed9t h\u01b0\u1edbng ph\u1ea3i b\u1eb1ng <\/p>\n<p dir=\"ltr\">            B. N\u1ebfu m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng c\u1ed1 \u0111\u1ecbnh \u0111\u01b0\u1ee3c c\u00e2n b\u1eb1ng, t\u1ed5ng m\u00f4 -men xo\u1eafn c\u1ee7a c\u00e1c l\u1ef1c ph\u1ea3i b\u1eb1ng v\u1edbi h\u1eb1ng s\u1ed1 <\/p>\n<p dir=\"ltr\">            C. N\u1ebfu b\u1ea1n mu\u1ed1n m\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng c\u00f3 tr\u1ee5c xoay c\u1ed1 \u0111\u1ecbnh, t\u1ed5ng m\u00f4 -men xo\u1eafn c\u1ee7a c\u00e1c l\u1ef1c kh\u00e1c ph\u1ea3i <\/p>\n<p dir=\"ltr\">            D. \u0110\u1ec3 \u0111\u01b0a ra m\u1ed9t tr\u1ee5c xoay c\u1ed1 \u0111\u1ecbnh, t\u1ed5ng m\u00f4 -men xo\u1eafn c\u1ee7a c\u00e1c l\u1ef1c ph\u1ea3i l\u00e0 m\u1ed9t vect\u01a1 v\u1edbi gi\u00e1 th\u00f4ng qua v\u00f2ng quay<\/p>\n<p dir=\"ltr\">Tr\u1ea3 l\u1eddi:<\/p>\n<p dir=\"ltr\">Ch\u1ecdn c\u00e2u h\u1ecfi a<\/p>\n<p dir=\"ltr\">B\u00e0i h\u1ecdc 4: L\u1ef1c c\u00f3 t\u00e1c d\u1ee5ng khi\u1ebfn ch\u1ea5t r\u1eafn xoay quanh tr\u1ee5c khi <\/p>\n<p dir=\"ltr\">            A. Gi\u00e1 \u0111\u01b0\u1ee3c \u0111\u1ecbnh gi\u00e1 trong m\u1eb7t ph\u1eb3ng vu\u00f4ng g\u00f3c v\u1edbi v\u00f2ng quay v\u00e0 c\u1eaft tr\u1ee5c quay <\/p>\n<p dir=\"ltr\">            B. L\u1ef1c \u0111\u01b0\u1ee3c \u0111\u1ecbnh gi\u00e1 song song v\u1edbi tr\u1ee5c quay  <\/p>\n<p dir=\"ltr\">            C. L\u1ef1c c\u00f3 gi\u00e1 c\u1eaft tr\u1ee5c <\/p>\n<p dir=\"ltr\">            D. Gi\u00e1 \u0111\u01b0\u1ee3c \u0111\u1ecbnh gi\u00e1 trong m\u1eb7t ph\u1eb3ng vu\u00f4ng g\u00f3c v\u1edbi tr\u1ee5c quay v\u00e0 kh\u00f4ng c\u1eaft tr\u1ee5c quay <\/p>\n<p dir=\"ltr\">Tr\u1ea3 l\u1eddi:<\/p>\n<p dir=\"ltr\">Ch\u1ecdn c\u00e2u h\u1ecfi d<\/p>\n<p dir=\"ltr\">B\u00e0i 5: Ch\u1ecdn c\u00e2u sai? <\/p>\n<p dir=\"ltr\">            A. L\u1ef1c m\u00f4 men l\u00e0 m\u1ed9t \u0111\u1ea1i l\u01b0\u1ee3ng c\u1ee5 th\u1ec3 cho hi\u1ec7u \u1ee9ng quay c\u1ee7a l\u1ef1c. <\/p>\n<p dir=\"ltr\">            B. L\u1ef1c l\u1ef1c \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng l\u1ef1c l\u01b0\u1ee3ng c\u1ee7a l\u1ef1c l\u01b0\u1ee3ng b\u1eb1ng s\u1ef1 t\u1ea5n c\u00f4ng c\u1ee7a l\u1ef1c \u0111\u00f3. <\/p>\n<p dir=\"ltr\">            C. L\u1ef1c m\u00f4 men l\u00e0 m\u1ed9t \u0111\u1ea1i l\u01b0\u1ee3ng c\u1ee5 th\u1ec3 cho hi\u1ec7u \u1ee9ng quay c\u1ee7a \u0111\u1ed1i t\u01b0\u1ee3ng. <\/p>\n<p dir=\"ltr\">            D. C\u00e1nh tay l\u00e0 kho\u1ea3ng c\u00e1ch t\u1eeb tr\u1ee5c quay \u0111\u1ebfn gi\u00e1 l\u1ef1c.<\/p>\n<p dir=\"ltr\">Tr\u1ea3 l\u1eddi:<\/p>\n<p dir=\"ltr\">Ch\u1ecdn c\u00e2u h\u1ecfi b<\/p>\n<p dir=\"ltr\">B\u00e0i 6: M\u1ed9t thanh \u0111\u1ed3ng nh\u1ea5t c\u00f3 tr\u1ecdng l\u01b0\u1ee3ng P \u0111\u01b0\u1ee3c g\u1eafn v\u00e0o t\u01b0\u1eddng b\u1eb1ng m\u1ed9t b\u1ea3n l\u1ec1 v\u00e0 \u0111\u01b0\u1ee3c gi\u1eef theo chi\u1ec1u ngang v\u1edbi m\u1ed9t d\u00e2y treo d\u1ecdc (H\u00ecnh 18.1). H\u00e3y xem x\u00e9t m\u00f4 -men xo\u1eafn cho b\u1ea3n l\u1ec1. Ch\u1ecdn \u0111\u00fang c\u00e2u.<\/p>\n<p dir=\"ltr\">        A. M\u00f4 -men xo\u1eafn c\u1ee7a l\u1ef1c c\u0103ng&gt; Moen c\u1ee7a tr\u1ecdng l\u1ef1c<\/p>\n<p dir=\"ltr\">        B. M\u00f4 -men xo\u1eafn c\u0103ng th\u1eb3ng<\/p>\n<p dir=\"ltr\">        C. M\u00f4 -men xo\u1eafn c\u1ee7a l\u1ef1c c\u0103ng = m\u00f4 -men xo\u1eafn tr\u1ecdng l\u1ef1c<\/p>\n<p dir=\"ltr\">        D. \u0110\u1ed9 c\u0103ng c\u1ee7a d\u00e2y = tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a thanh.<\/p>\n<p dir=\"ltr\">Tr\u1ea3 l\u1eddi:<\/p>\n<p dir=\"ltr\">Ch\u1ecdn C.<\/p>\n<p dir=\"ltr\">Thanh n\u1eb1m d\u01b0\u1edbi hi\u1ec7u \u1ee9ng c\u1ee7a 3 l\u1ef1c: tr\u1ecdng l\u1ef1c P n\u1eb1m \u1edf gi\u1eefa thanh, \u0111\u1ed9 c\u0103ng t c\u1ee7a s\u1ee3i d\u00e2y v\u00e0 to\u00e0n b\u1ed9 J Jet \u1edf b\u1ea3n l\u1ec1.<\/p>\n<p dir=\"ltr\">Thanh c\u00f3 th\u1ec3 xoay xung quanh b\u1ea3n l\u1ec1. V\u00ec v\u1eady, khi xem x\u00e9t m\u00f4 -men xo\u1eafn cho b\u1ea3n l\u1ec1, MQ\/O = 0.<\/p>\n<p dir=\"ltr\">Khi thanh \u0111\u01b0\u1ee3c c\u00e2n b\u1eb1ng, m\u00f4 -men xo\u1eafn c\u1ee7a l\u1ef1c c\u0103ng = m\u00f4 -men xo\u1eafn c\u1ee7a tr\u1ecdng l\u1ef1c.<\/p>\n<p dir=\"ltr\">B\u00e0i 7: M\u1ed9t thanh AB = 7,5 m n\u1eb7ng 200 N c\u00f3 t\u00e2m 2 m t\u1eeb \u0111\u1ea7u A. Thanh c\u00f3 th\u1ec3 xoay quanh tr\u1ee5c qua O. Bi\u1ebft OA = 2,5 m. \u0110\u1ec3 AB c\u00e2n b\u1eb1ng, n\u00f3 ph\u1ea3i h\u00e0nh \u0111\u1ed9ng v\u00e0o cu\u1ed1i b cho l\u1ef1c F c\u1ee7a k\u00edch th\u01b0\u1edbc c\u1ee7a<\/p>\n<p dir=\"ltr\">        A. 100 N.<\/p>\n<p dir=\"ltr\">        B. 25 N.<\/p>\n<p dir=\"ltr\">        C. 10 N.<\/p>\n<p dir=\"ltr\">        D. 20 N.<\/p>\n<p dir=\"ltr\">Tr\u1ea3 l\u1eddi:<\/p>\n<p dir=\"ltr\">Ch\u1ecdn c\u00e2u h\u1ecfi d<\/p>\n<p dir=\"ltr\">B\u00e0i 8: M\u1ed9t ch\u00f9m ngang c\u00f3 tr\u1ecdng l\u01b0\u1ee3ng 10 m l\u00e0 200 N. M\u1ed9t \u0111\u1ea7u c\u1ee7a ch\u00f9m tia \u0111\u01b0\u1ee3c g\u1eafn v\u00e0o t\u01b0\u1eddng, \u0111\u1ea7u kia \u0111\u01b0\u1ee3c gi\u1eef b\u1eb1ng m\u1ed9t chu\u1ed7i \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n v\u1edbi h\u01b0\u1edbng ngang l\u00e0 60.<\/p>\n<p dir=\"ltr\">        A. 200 N.<\/p>\n<p dir=\"ltr\">        B. 100 N.<\/p>\n<p dir=\"ltr\">        C. 116 N.<\/p>\n<p dir=\"ltr\">        D. 173 N.<\/p>\n<p dir=\"ltr\">Tr\u1ea3 l\u1eddi: <\/p>\n<p dir=\"ltr\">Ch\u1ecdn c\u00e2u h\u1ecfi c<\/p>\n<p dir=\"ltr\">B\u00e0i 9: M\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng r\u1eafn \u1edf tr\u1ea1ng th\u00e1i c\u00e2n b\u1eb1ng s\u1ebd kh\u00f4ng quay khi t\u1ed5ng th\u1eddi \u0111i\u1ec3m c\u1ee7a l\u1ef1c b\u1eb1ng 0.<\/p>\n<p dir=\"ltr\">        A. Tr\u1ecdng t\u00e2m c\u1ee7a c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng r\u1eafn.<\/p>\n<p dir=\"ltr\">        B. ti\u00eau \u0111i\u1ec3m h\u00ecnh h\u1ecdc c\u1ee7a c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng r\u1eafn.<\/p>\n<p dir=\"ltr\">        C. C\u00f9ng m\u1ed9t tr\u1ee5c vu\u00f4ng g\u00f3c v\u1edbi m\u1eb7t ph\u1eb3ng c\u00f3 s\u1ee9c ch\u1ee9a l\u1ef1c<\/p>\n<p dir=\"ltr\">        D. \u0110i\u1ec3m \u0111\u1eb7t c\u1ee7a l\u1ef1c.<\/p>\n<p dir=\"ltr\">Tr\u1ea3 l\u1eddi:<\/p>\n<p dir=\"ltr\">Ch\u1ecdn C.<\/p>\n<p dir=\"ltr\">M\u1ed9t \u0111\u1ed1i t\u01b0\u1ee3ng r\u1eafn \u1edf tr\u1ea1ng th\u00e1i c\u00e2n b\u1eb1ng s\u1ebd kh\u00f4ng quay khi t\u1ed5ng m\u00f4 -men xo\u1eafn c\u1ee7a l\u1ef1c b\u1eb1ng 0.<\/p>\n<p dir=\"ltr\">B\u00e0i h\u1ecdc 10: Ruler AB = 100cm, tr\u1ecdng l\u01b0\u1ee3ng p = 10n, trung t\u00e2m c\u1ee7a tr\u1ecdng l\u1ef1c \u1edf gi\u1eefa ng\u01b0\u1eddi cai tr\u1ecb. Th\u01b0\u1edbc \u0111o c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c xoay d\u1ec5 d\u00e0ng xung quanh m\u1ed9t tr\u1ee5c ngang \u0111i qua O v\u1edbi OA = 30cm. \u0110\u1ed1i v\u1edbi m\u1ed9t s\u1ef1 c\u00e2n b\u1eb1ng v\u00e0 th\u01b0\u1edbc k\u1ebb ngang, n\u00f3 c\u1ea7n bao nhi\u00eau \u0111\u1ec3 treo \u1edf cu\u1ed1i a?<\/p>\n<p dir=\"ltr\">      A. 4,38 n<\/p>\n<p dir=\"ltr\">      B. 5,24 n<\/p>\n<p dir=\"ltr\">      C. 6,67 n<\/p>\n<p dir=\"ltr\">      D. 9.34 n<\/p>\n<p dir=\"ltr\">Tr\u1ea3 l\u1eddi:<\/p>\n<p dir=\"ltr\">Ch\u1ecdn c<\/p>\n<p dir=\"ltr\">Tr\u00ean \u0111\u00e2y l\u00e0 m\u1ed9t b\u1ea3n t\u00f3m t\u1eaft ki\u1ebfn \u200b\u200bth\u1ee9c t\u1eeb A &#8211; Z tr\u00ean Momenel, hy v\u1ecdng r\u1eb1ng th\u00f4ng tin \u0111\u01b0\u1ee3c chia s\u1ebb trong b\u00e0i vi\u1ebft n\u00e0y s\u1ebd gi\u00fap h\u1ecd n\u1eafm b\u1eaft ki\u1ebfn \u200b\u200bth\u1ee9c v\u1ec1 m\u00f4 -men xo\u1eafn c\u0169ng nh\u01b0 \u00e1p d\u1ee5ng ch\u00fang trong cu\u1ed9c s\u1ed1ng. C\u1ea3m \u01a1n b\u1ea1n \u0111\u00e3 xem v\u00e0 \u0111\u1ecdc b\u00e0i b\u00e1o.<\/p>\n<p>Ngu\u1ed3n: <a href=\"http:\/\/www.ckconitsha.com\/vn\/\">http:\/\/www.ckconitsha.com\/vn\/<\/a> T\u00e1c gi\u1ea3: <a href=\"https:\/\/www.ckconitsha.com\/vn\/author\/nguyenlandung\">Nguy\u1ec5n L\u00e2n d\u0169ng<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Trong ch\u01b0\u01a1ng tr\u00ecnh v\u1eadt l\u00fd 10, h\u1ecd s\u1ebd t\u00ecm hi\u1ec3u v\u1ec1 m\u00f4 -men xo\u1eafn. \u0110\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1 c\u00e1c kh\u00e1i ni\u1ec7m, c\u00f4ng th\u1ee9c, quy t\u1eafc v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a s\u1ed1 l\u01b0\u1ee3ng n\u00e0y trong cu\u1ed9c s\u1ed1ng, h\u00e3y \u0111\u1ec3 kh\u1ec9 \u0111\u1ecdc b\u00e0i vi\u1ebft t\u00f3m t\u1eaft ki\u1ebfn \u200b\u200bth\u1ee9c v\u1ec1 s\u1ee9c m\u1ea1nh momena ngay l\u1eadp t\u1ee9c! H\u00e0ng tri\u1ec7u&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[100],"tags":[],"class_list":["post-18836","post","type-post","status-publish","format-standard","hentry","category-kien-thuc"],"_links":{"self":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/18836","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/comments?post=18836"}],"version-history":[{"count":2,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/18836\/revisions"}],"predecessor-version":[{"id":24217,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/posts\/18836\/revisions\/24217"}],"wp:attachment":[{"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/media?parent=18836"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/categories?post=18836"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ckconitsha.com\/vn\/wp-json\/wp\/v2\/tags?post=18836"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}