{"common":{"save":0,"post_id":"6315","level":2,"total":10,"point":10,"point_extra":0},"segment":[{"id":"5766","mon_id":"1158790","chapter_id":"1158795","post_id":"6315","question":"<p>H\u1ec7 s\u1ed1 g&oacute;c (\u0111\u1ed9 d\u1ed1c) trong \u0111\u1ed3 th\u1ecb d &ndash; t cho bi\u1ebft \u0111i\u1ec1u g&igrave;?<\/p><p><span class=\"svgedit\"><svg height=\"272\" width=\"320\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\"> <g>&lt;title&gt;&lt;\/title><rect fill=\"#fff\" height=\"274\" id=\"canvas_background\" width=\"322\" 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=\"272\" id=\"svg_1\" stroke-dasharray=\"5,5\" width=\"320\" x=\"1\" xlink:href=\"data:image\/png;base64,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\" y=\"2\"><\/image> <line fill=\"none\" id=\"svg_3\" stroke=\"#000\" stroke-linecap=\"undefined\" stroke-linejoin=\"undefined\" stroke-width=\"1.5\" x1=\"551.5125\" x2=\"556.5125\" y1=\"161.5\" y2=\"158.5\"><\/line> <\/g> <\/svg><\/span><\/p>","options":[" A. \u0111\u1ed9 d\u1ecbch chuy\u1ec3n c\u1ee7a v\u1eadt trong m\u1ed9t kho\u1ea3ng th\u1eddi gian","B. qu&atilde;ng \u0111\u01b0\u1eddng v\u1eadt \u0111i \u0111\u01b0\u1ee3c trong m\u1ed9t kho\u1ea3ng th\u1eddi gian","C. t\u1ed1c \u0111\u1ed9 chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a v\u1eadt trong m\u1ed9t kho\u1ea3ng th\u1eddi gian","D. \u0111\u1ed9 l\u1edbn v\u1eadn t\u1ed1c chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a v\u1eadt trong m\u1ed9t kho\u1ea3ng th\u1eddi gian"],"correct":"4","level":"2","hint":"<p>H\u1ec7 s\u1ed1 g&oacute;c (\u0111\u1ed9 d\u1ed1c) trong \u0111\u1ed3 th\u1ecb d &ndash; t l&agrave; tan&alpha;, cho bi\u1ebft \u0111\u1ed9 l\u1edbn v\u1eadn t\u1ed1c chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a v\u1eadt trong m\u1ed9t kho\u1ea3ng th\u1eddi gian.<\/p>","answer":"<p><span style=\"color:#27ae60;\"><strong>Ch\u1ecdn D.<br \/>H\u1ec7 s\u1ed1 g&oacute;c (\u0111\u1ed9 d\u1ed1c) trong \u0111\u1ed3 th\u1ecb d &ndash; t l&agrave; tan&alpha;, c\u0169ng ch&iacute;nh l&agrave; \u0111\u1ed9 l\u1edbn v\u1eadn t\u1ed1c chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a v\u1eadt: &nbsp;<span class=\"math-tex\">$tan(\\alpha)=\\frac{\\triangle d}{\\triangle t}=\\nu$<\/span><\/strong><\/span><\/p>","type":"choose","extra_type":"classic","user_id":"147","test":"0","date":"2022-10-13 09:44:46","option_type":"txt","len":3},{"id":"5767","mon_id":"1158790","chapter_id":"1158795","post_id":"6315","question":"<p>\u0110\u1ed3 th\u1ecb c\u1ee7a \u0111\u1ed9 d\u1ecbch chuy\u1ec3n theo th\u1eddi gian c\u1ee7a m\u1ed9t v\u1eadt chuy\u1ec3n \u0111\u1ed9ng th\u1eb3ng \u0111\u1ec1u kh&ocirc;ng \u0111\u1ed5i chi\u1ec1u c&oacute; d\u1ea1ng g&igrave;?<\/p>","options":["A. \u0111\u01b0\u1eddng th\u1eb3ng","B. parabol","C. elip","D. \u0111\u01b0\u1eddng tr&ograve;n"],"correct":"1","level":"2","hint":"<p>Khi v\u1eadt chuy\u1ec3n \u0111\u1ed9ng th\u1eb3ng \u0111\u1ec1u kh&ocirc;ng \u0111\u1ed5i chi\u1ec1u th&igrave; v\u1eadn t\u1ed1c c\u1ee7a v\u1eadt l&agrave; kh&ocirc;ng \u0111\u1ed5i.<\/p>","answer":"<p><span style=\"color:#27ae60;\"><strong>Ch\u1ecdn A.<br \/>Khi v\u1eadt chuy\u1ec3n \u0111\u1ed9ng th\u1eb3ng \u0111\u1ec1u kh&ocirc;ng \u0111\u1ed5i chi\u1ec1u th&igrave; v\u1eadn t\u1ed1c c\u1ee7a v\u1eadt l&agrave; kh&ocirc;ng \u0111\u1ed5i, n&ecirc;n \u0111\u1ed3 th\u1ecb c\u1ee7a \u0111\u1ed9 d\u1ecbch chuy\u1ec3n theo th\u1eddi gian l&agrave; m\u1ed9t \u0111\u01b0\u1eddng th\u1eb3ng xi&ecirc;n g&oacute;c.<br \/>&nbsp;<span class=\"svgedit\"><svg height=\"244\" width=\"255\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\"> <g>&lt;title&gt;&lt;\/title><rect fill=\"#fff\" height=\"246\" id=\"canvas_background\" width=\"257\" 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=\"244\" id=\"svg_1\" width=\"255\" x=\"-0.5\" 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y=\"1\"><\/image> <\/g> <\/svg><\/span><\/strong><\/span><\/p>","type":"choose","extra_type":"classic","user_id":"147","test":"0","date":"2022-10-13 09:48:44","option_type":"txt","len":2},{"id":"5768","mon_id":"1158790","chapter_id":"1158795","post_id":"6315","question":"<p>Khi v\u1eadt chuy\u1ec3n \u0111\u1ed9ng th\u1eb3ng \u0111\u1ec1u th&igrave; \u0111\u1ed3 th\u1ecb v &ndash; t c&oacute; d\u1ea1ng g&igrave;?<\/p>","options":["A. \u0111\u01b0\u1eddng th\u1eb3ng vu&ocirc;ng g&oacute;c tr\u1ee5c Ot","B. \u0111\u01b0\u1eddng th\u1eb3ng song song tr\u1ee5c Ot","C. \u0111\u01b0\u1eddng th\u1eb3ng \u0111i qua g\u1ed1c t\u1ecda \u0111\u1ed9 O","D. \u0111\u01b0\u1eddng th\u1eb3ng xi&ecirc;n g&oacute;c kh&ocirc;ng \u0111i qua g\u1ed1c t\u1ecda \u0111\u1ed9 O"],"correct":"2","level":"2","hint":"<p>Chuy\u1ec3n \u0111\u1ed9ng th\u1eb3ng \u0111\u1ec1u l&agrave; chuy\u1ec3n \u0111\u1ed9ng c&oacute; qu\u1ef9 \u0111\u1ea1o l&agrave; \u0111\u01b0\u1eddng th\u1eb3ng, v\u1eadn t\u1ed1c kh&ocirc;ng \u0111\u1ed5i theo th\u1eddi gian.<\/p>","answer":"<p><span style=\"color:#27ae60;\"><strong>Ch\u1ecdn B.<br \/>Chuy\u1ec3n \u0111\u1ed9ng th\u1eb3ng \u0111\u1ec1u l&agrave; chuy\u1ec3n \u0111\u1ed9ng c&oacute; qu\u1ef9 \u0111\u1ea1o l&agrave; \u0111\u01b0\u1eddng th\u1eb3ng, v\u1eadn t\u1ed1c kh&ocirc;ng \u0111\u1ed5i theo th\u1eddi gian n&ecirc;n \u0111\u1ed3 th\u1ecb v &ndash; t s\u1ebd c&oacute; d\u1ea1ng \u0111\u01b0\u1eddng th\u1eb3ng song song tr\u1ee5c Ot.<\/strong><\/span><\/p>","type":"choose","extra_type":"classic","user_id":"147","test":"0","date":"2022-10-13 09:49:44","option_type":"txt","len":3}]}