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\" y=\"-2\"><\/image> <\/g> <\/svg><\/span><\/p>","options":["A. 40 km.","B. 80 km.","C. 60 km.","D. 20 km."],"correct":"3","level":"2","hint":"<p>Tru\u0323c tung Os cho bi&ecirc;\u0301t qua\u0303ng \u0111\u01b0\u01a1\u0300ng v&acirc;\u0323t \u0111i \u0111\u01b0\u01a1\u0323c t\u01b0\u01a1ng \u01b0\u0301ng v\u01a1\u0301i tru\u0323c hoa\u0300nh Ot.<\/p>","answer":"<p>T\u01b0\u0300 \u0111&ocirc;\u0300 thi\u0323 ta x&aacute;c \u0111\u1ecbnh \u0111\u01b0\u1ee3c t\u1ea1i t = 3h th&igrave; s = 60 km. Ngh\u0129a l&agrave; sau 3 h, v\u1eadt \u0111i \u0111\u01b0\u1ee3c qu&atilde;ng \u0111\u01b0\u1eddng l&agrave; 60 km.<br \/><span style=\"color:#27ae60;\"><\/span>\u0110&aacute;p &aacute;n \u0111&uacute;ng: <span style=\"color:#27ae60;\"><strong>C. 60 km.<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"147","test":"0","date":"2022-08-26 14:18:41","option_type":"txt","len":0},{"id":"9474","post_id":"6001","mon_id":"1158739","chapter_id":"1158740","question":"<p>H&igrave;nh d\u01b0\u1edbi l&agrave; \u0111\u1ed3 th\u1ecb qu&atilde;ng \u0111\u01b0\u1eddng - th\u1eddi gian c\u1ee7a m\u1ed9t &ocirc; t&ocirc; chuy\u1ec3n \u0111\u1ed9ng. X&aacute;c \u0111\u1ecbnh t\u1ed1c \u0111\u1ed9 chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a &ocirc; t&ocirc; tr&ecirc;n \u0111o\u1ea1n OA?<\/p><p><span class=\"svgedit\"><svg height=\"177\" width=\"211\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\"> <g>&lt;title&gt;&lt;\/title><rect fill=\"#fff\" height=\"179\" id=\"canvas_background\" width=\"213\" x=\"-1\" y=\"-1\"><\/rect> <g display=\"none\" height=\"100%\" id=\"canvasGrid\" overflow=\"visible\" width=\"100%\" x=\"0\" y=\"0\"> <rect fill=\"url(#gridpattern)\" height=\"100%\" stroke-width=\"0\" width=\"100%\" x=\"0\" y=\"0\"><\/rect> <\/g> <\/g> <g>&lt;title&gt;&lt;\/title><image height=\"193\" id=\"svg_1\" stroke=\"null\" width=\"205\" x=\"1\" xlink:href=\"data:image\/png;base64,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\" y=\"-5\"><\/image> <\/g> <\/svg><\/span><\/p>","options":["A. 40 km\/h.","B. 150 km\/h.","C. 120 km\/h.","D. 90 km\/h."],"correct":"4","level":"2","hint":"<p>- Xa\u0301c \u0111i\u0323nh qua\u0303ng \u0111\u01b0\u01a1\u0300ng \u0111i \u0111\u01b0\u01a1\u0323c ta\u0323i tru\u0323c Os.<br \/>- Xa\u0301c \u0111i\u0323nh th\u01a1\u0300i gian \u0111i \u0111\u01b0\u01a1\u0323c ta\u0323i tru\u0323c Ot t\u01b0\u01a1ng \u01b0\u0301ng v\u01a1\u0301i qua\u0303ng \u0111\u01b0\u01a1\u0300ng.<br \/>- S\u01b0\u0309 du\u0323ng c&ocirc;ng th\u01b0\u0301c ti\u0301nh t&ocirc;\u0301c \u0111&ocirc;\u0323&nbsp;<span class=\"math-tex\">$v=\\frac{s}{t}$<\/span><\/p>","answer":"<p>T\u1eeb \u0111\u1ed3 th\u1ecb ta th\u1ea5y, sau 2 h &ocirc; t&ocirc; \u0111i \u0111\u01b0\u1ee3c qu&atilde;ng \u0111\u01b0\u1eddng l&agrave; 180 km. Do \u0111&oacute;, t\u1ed1c \u0111\u1ed9 chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a &ocirc; t&ocirc; l&agrave;:<\/p><p><span class=\"math-tex\">$v=\\frac{s}{t}=\\frac{180}{2}=90km\/h$<\/span><br \/><span style=\"color:#27ae60;\"><strong>\u0110&aacute;p &aacute;n \u0111&uacute;ng: D. 90 km\/h.<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"147","test":"0","date":"2022-08-26 14:26:39","option_type":"txt","len":1},{"id":"9475","post_id":"6001","mon_id":"1158739","chapter_id":"1158740","question":"<p>D\u1ef1a v&agrave;o \u0111\u1ed3 th\u1ecb chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a v\u1eadt nh\u01b0 tr&ecirc;n h&igrave;nh v\u1ebd, em h&atilde;y cho bi\u1ebft: sau 2 gi\u1edd k\u1ec3 t\u1eeb khi xu\u1ea5t ph&aacute;t th&igrave; v\u1eadt c&aacute;ch \u0111i\u1ec3m xu\u1ea5t ph&aacute;t bao nhi&ecirc;u km?<\/p><p><span class=\"svgedit\"><svg height=\"165\" width=\"224\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\"> <g>&lt;title&gt;&lt;\/title><rect fill=\"#fff\" 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y=\"-26.5\"><\/image> <\/g> <\/svg><\/span><\/p>","options":["A. 25 km.","B. 50 km.","C. 75 km.","D. 100 km."],"correct":"2","level":"2","hint":"<p>Tru\u0323c Os cho bi&ecirc;\u0301t qua\u0303ng \u0111\u01b0\u01a1\u0300ng, tru\u0323c Ot cho bi&ecirc;\u0301t th\u01a1\u0300i gian \u0111i \u0111\u01b0\u01a1\u0323c t\u01b0\u01a1ng \u01b0\u0301ng.<\/p>","answer":"<p>D\u1ef1a v&agrave;o \u0111\u1ed3 th\u1ecb ta th\u1ea5y l&uacute;c 2 gi\u1edd k\u1ec3 t\u1eeb khi xu\u1ea5t ph&aacute;t th&igrave; v\u1eadt \u0111&atilde; \u0111i \u0111\u01b0\u1ee3c qu&atilde;ng \u0111\u01b0\u1eddng 50 km v&agrave; c&aacute;ch \u0111i\u1ec3m xu\u1ea5t ph&aacute;t 50 km.<br \/><span style=\"color:#27ae60;\"><strong>\u0110&aacute;p &aacute;n \u0111&uacute;ng: B. 50 km.<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"147","test":"0","date":"2022-08-26 14:29:29","option_type":"txt","len":0}]}