{"id":27645,"date":"2023-11-06T13:50:30","date_gmt":"2023-11-06T06:50:30","guid":{"rendered":"https:\/\/xbookvn.com\/?post_type=lp_course&#038;p=27645"},"modified":"2025-11-07T08:43:41","modified_gmt":"2025-11-07T01:43:41","slug":"luc-ma-sat","status":"publish","type":"lp_course","link":"https:\/\/xbookvn.com\/en\/xbook\/luc-ma-sat\/","title":{"rendered":"Friction force"},"content":{"rendered":"<p data-start=\"139\" data-end=\"268\" class=\" translation-block\">\ud83d\udcd8 <strong data-start=\"142\" data-end=\"195\">L\u1ef1c ma s\u00e1t \u2013 Khi chuy\u1ec3n \u0111\u1ed9ng kh\u00f4ng c\u00f2n \u201ctr\u01a1n tru\u201d<\/strong><br data-start=\"195\" data-end=\"198\"><strong data-start=\"198\" data-end=\"219\">TUTBook\u2122 \u2013 xBook:<\/strong> H\u1ecdc V\u1eadt l\u00fd qua m\u00f4 ph\u1ecfng v\u00e0 tr\u1ea3i nghi\u1ec7m th\u1ef1c t\u1ebf<\/p>\n<p data-start=\"270\" data-end=\"623\" class=\" translation-block\"><strong data-start=\"270\" data-end=\"286\">\u201cL\u1ef1c ma s\u00e1t\u201d<\/strong> kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t kh\u00e1i ni\u1ec7m kh\u00f4 khan trong s\u00e1ch gi\u00e1o khoa, m\u00e0 l\u00e0 <strong data-start=\"351\" data-end=\"416\">m\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng v\u1eadt l\u00fd lu\u00f4n hi\u1ec7n di\u1ec7n trong \u0111\u1eddi s\u1ed1ng h\u00e0ng ng\u00e0y<\/strong> \u2013 t\u1eeb b\u01b0\u1edbc ch\u00e2n tr\u00ean s\u00e0n, b\u00e1nh xe l\u0103n, cho \u0111\u1ebfn t\u00e0u v\u0169 tr\u1ee5 r\u1eddi qu\u1ef9 \u0111\u1ea1o.<br data-start=\"486\" data-end=\"489\">Cu\u1ed1n s\u00e1ch tr\u00ean n\u1ec1n t\u1ea3ng <strong data-start=\"513\" data-end=\"522\">xBook<\/strong> bi\u1ebfn nh\u1eefng \u0111\u1ecbnh lu\u1eadt t\u01b0\u1edfng ch\u1eebng tr\u1eebu t\u01b0\u1ee3ng th\u00e0nh <strong data-start=\"573\" data-end=\"620\">tr\u1ea3i nghi\u1ec7m tr\u1ef1c quan, sinh \u0111\u1ed9ng v\u00e0 d\u1ec5 hi\u1ec3u<\/strong>.<\/p>\n<p data-start=\"630\" data-end=\"964\" class=\" translation-block\">\ud83d\udd39 <strong data-start=\"633\" data-end=\"669\">Kh\u00e1m ph\u00e1 b\u1ea3n ch\u1ea5t c\u1ee7a l\u1ef1c ma s\u00e1t<\/strong><br data-start=\"669\" data-end=\"672\">H\u1ecdc sinh \u0111\u01b0\u1ee3c quan s\u00e1t m\u00f4 ph\u1ecfng khi <strong data-start=\"708\" data-end=\"736\">v\u1eadt tr\u01b0\u1ee3t tr\u00ean m\u1eb7t ph\u1eb3ng<\/strong>, thay \u0111\u1ed5i \u0111\u1ed9 nh\u00e1m, tr\u1ecdng l\u01b0\u1ee3ng hay g\u00f3c nghi\u00eang \u0111\u1ec3 th\u1ea5y r\u00f5 <strong data-start=\"795\" data-end=\"856\">s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa ma s\u00e1t tr\u01b0\u1ee3t, ma s\u00e1t ngh\u1ec9 v\u00e0 ma s\u00e1t l\u0103n<\/strong>.<br data-start=\"857\" data-end=\"860\">C\u00e1c bi\u1ec3u \u0111\u1ed3 l\u1ef1c \u0111\u01b0\u1ee3c <strong data-start=\"881\" data-end=\"895\">v\u1ebd t\u1ef1 \u0111\u1ed9ng<\/strong>, gi\u00fap hi\u1ec3u r\u00f5 m\u1ed1i quan h\u1ec7 gi\u1eefa <strong data-start=\"927\" data-end=\"961\">l\u1ef1c k\u00e9o \u2013 l\u1ef1c ma s\u00e1t \u2013 gia t\u1ed1c<\/strong>.<\/p>\n<p data-start=\"1226\" data-end=\"1484\" class=\" translation-block\">\ud83d\udd39 <strong data-start=\"1229\" data-end=\"1262\">T\u1eeb l\u00fd thuy\u1ebft \u0111\u1ebfn th\u1ef1c h\u00e0nh \u1ea3o<\/strong><br data-start=\"1262\" data-end=\"1265\">Cu\u1ed1n s\u00e1ch t\u00edch h\u1ee3p <strong data-start=\"1284\" data-end=\"1310\">tr\u00f2 ch\u01a1i m\u00f4 ph\u1ecfng mini<\/strong>, n\u01a1i h\u1ecdc sinh ph\u1ea3i l\u1ef1a ch\u1ecdn \u0111\u00fang l\u1ef1c t\u00e1c d\u1ee5ng \u0111\u1ec3 \u201cgi\u1ea3i c\u1ee9u v\u1eadt tr\u01b0\u1ee3t\u201d.<br data-start=\"1381\" data-end=\"1384\">Nh\u1eefng th\u00ed nghi\u1ec7m t\u01b0\u1edfng nh\u01b0 ch\u1ec9 c\u00f3 trong ph\u00f2ng lab gi\u1edd \u0111\u00e2y c\u00f3 th\u1ec3 <strong data-start=\"1449\" data-end=\"1481\">th\u1ef1c hi\u1ec7n ngay tr\u00ean m\u00e0n h\u00ecnh<\/strong>.<\/p>\n<p data-start=\"2028\" data-end=\"2218\" data-is-last-node=\"\" data-is-only-node=\"\" class=\" translation-block\">\ud83d\udcd7 <strong data-start=\"2031\" data-end=\"2042\">Ch\u1ee7 \u0111\u1ec1:<\/strong> <em data-start=\"2043\" data-end=\"2099\">Khoa h\u1ecdc t\u1ef1 nhi\u00ean \u2013 V\u1eadt l\u00fd (Natural Science \/ Physics)<\/em><br data-start=\"2099\" data-end=\"2102\">\ud83c\udff7\ufe0f <strong data-start=\"2106\" data-end=\"2124\">Ph\u00e1t h\u00e0nh b\u1edfi:<\/strong> <em data-start=\"2125\" data-end=\"2218\" data-is-last-node=\"\">TUTBook\u2122 tr\u00ean n\u1ec1n t\u1ea3ng xBook \u2013 Bi\u1ebfn \u0111\u1ecbnh lu\u1eadt th\u00e0nh h\u00e0nh tr\u00ecnh kh\u00e1m ph\u00e1 khoa h\u1ecdc th\u1ef1c ti\u1ec5n.<\/em><\/p>","protected":false},"excerpt":{"rendered":"<p>\ud83d\udcd8 L\u1ef1c ma s\u00e1t \u2013 Khi chuy\u1ec3n \u0111\u1ed9ng kh\u00f4ng c\u00f2n \u201ctr\u01a1n tru\u201dTUTBook\u2122 \u2013 xBook: H\u1ecdc V\u1eadt l\u00fd qua m\u00f4 ph\u1ecfng v\u00e0 tr\u1ea3i nghi\u1ec7m th\u1ef1c t\u1ebf \u201cL\u1ef1c ma s\u00e1t\u201d kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t kh\u00e1i ni\u1ec7m kh\u00f4 khan trong s\u00e1ch gi\u00e1o khoa, &hellip; <\/p>","protected":false},"author":48,"featured_media":27646,"comment_status":"open","ping_status":"closed","template":"","course_category":[87,79,295],"course_tag":[],"class_list":["post-27645","lp_course","type-lp_course","status-publish","has-post-thumbnail","hentry","course_category-khoa-hoc-tu-nhien","course_category-sgk","course_category-xbook","pmpro-has-access","course"],"_links":{"self":[{"href":"https:\/\/xbookvn.com\/en\/wp-json\/wp\/v2\/lp_course\/27645","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xbookvn.com\/en\/wp-json\/wp\/v2\/lp_course"}],"about":[{"href":"https:\/\/xbookvn.com\/en\/wp-json\/wp\/v2\/types\/lp_course"}],"author":[{"embeddable":true,"href":"https:\/\/xbookvn.com\/en\/wp-json\/wp\/v2\/users\/48"}],"replies":[{"embeddable":true,"href":"https:\/\/xbookvn.com\/en\/wp-json\/wp\/v2\/comments?post=27645"}],"version-history":[{"count":2,"href":"https:\/\/xbookvn.com\/en\/wp-json\/wp\/v2\/lp_course\/27645\/revisions"}],"predecessor-version":[{"id":27711,"href":"https:\/\/xbookvn.com\/en\/wp-json\/wp\/v2\/lp_course\/27645\/revisions\/27711"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/xbookvn.com\/en\/wp-json\/wp\/v2\/media\/27646"}],"wp:attachment":[{"href":"https:\/\/xbookvn.com\/en\/wp-json\/wp\/v2\/media?parent=27645"}],"wp:term":[{"taxonomy":"course_category","embeddable":true,"href":"https:\/\/xbookvn.com\/en\/wp-json\/wp\/v2\/course_category?post=27645"},{"taxonomy":"course_tag","embeddable":true,"href":"https:\/\/xbookvn.com\/en\/wp-json\/wp\/v2\/course_tag?post=27645"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}