{"id":40292,"date":"2024-11-03T15:59:01","date_gmt":"2024-11-03T15:59:01","guid":{"rendered":"https:\/\/atmokpo.com\/w\/?p=40292"},"modified":"2024-11-26T06:39:30","modified_gmt":"2024-11-26T06:39:30","slug":"6-%ec%9d%bc%ea%b3%bc-%ec%97%90%eb%84%88%ec%a7%80-%eb%b2%95%ec%b9%99-%ec%9a%b4%eb%8f%99-%ec%97%90%eb%84%88%ec%a7%80","status":"publish","type":"post","link":"https:\/\/atmokpo.com\/w\/40292\/","title":{"rendered":"6.\uc77c\uacfc \uc5d0\ub108\uc9c0 \ubc95\uce59, \uc6b4\ub3d9 \uc5d0\ub108\uc9c0 \ufffc"},"content":{"rendered":"

<\/p>\n

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1. \uc11c\ub860<\/h2>\n

\ubb3c\ub9ac\ud559\uc5d0\uc11c \uc77c\uacfc \uc5d0\ub108\uc9c0 \ubc95\uce59\uc740 \uc6b0\ub9ac\uc758 \uc138\uacc4\ub97c \uc774\ud574\ud558\ub294 \ub370 \ud544\uc218\uc801\uc778 \uae30\ubcf8 \uc6d0\ub9ac\uc785\ub2c8\ub2e4. \uc774 \ubc95\uce59\ub4e4\uc740 \uc0ac\ubb3c\uc758 \uc6c0\uc9c1\uc784\uacfc \uc0c1\ud638\uc791\uc6a9\uc744 \uc124\uba85\ud558\uace0 \uc608\uce21\ud558\ub294 \ub370 \uc911\uc694\ud55c \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4. \ud2b9\ud788, \uc77c(work)\uacfc \uc5d0\ub108\uc9c0(energy) \uc0ac\uc774\uc758 \uad00\uacc4\ub294 \ubb3c\uccb4\uc758 \uc6b4\ub3d9 \uc0c1\ud0dc\ub97c \ubcc0\ud654\uc2dc\ud0a4\ub294 \uc911\uc694\ud55c \uc694\uc18c\uc785\ub2c8\ub2e4. \uc774 \ube14\ub85c\uadf8\uc5d0\uc11c\ub294 \uc77c\uacfc \uc5d0\ub108\uc9c0 \ubc95\uce59, \uadf8\ub9ac\uace0 \uc6b4\ub3d9 \uc5d0\ub108\uc9c0\uc5d0 \ub300\ud574 \uc790\uc138\ud788 \uc124\uba85\ud558\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n<\/section>\n

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2. \uc77c\uc758 \uc815\uc758<\/h2>\n

\uc77c\uc740 \ubb3c\uccb4\uc5d0 \ud798\uc774 \uc791\uc6a9\ud558\uc5ec \uadf8 \ubb3c\uccb4\uac00 \uc774\ub3d9\ud558\ub294 \uacbd\uc6b0\uc5d0 \ubc1c\uc0dd\ud569\ub2c8\ub2e4. \uc218\ud559\uc801\uc73c\ub85c, \uc77c\uc740 \ub2e4\uc74c\uacfc \uac19\uc774 \uc815\uc758\ub429\ub2c8\ub2e4:<\/p>\n

\n\uc77c (W) = \ud798 (F) \u00d7 \uc774\ub3d9 \uac70\ub9ac (d) \u00d7 cos(\u03b8)<\/strong>\n<\/p>\n

\uc5ec\uae30\uc11c \u03b8<\/strong>\ub294 \ud798\uacfc \uc774\ub3d9 \ubc29\ud5a5 \uc0ac\uc774\uc758 \uac01\ub3c4\uc785\ub2c8\ub2e4. \ud798\uc774 \uc774\ub3d9 \ubc29\ud5a5\uacfc \uac19\uc740 \ubc29\ud5a5\uc77c \ub54c, (\u03b8 = 0) \uc77c\uc740 \ucd5c\ub300\uac00 \ub418\uace0, \ud798\uacfc \uc774\ub3d9 \ubc29\ud5a5\uc774 \uc218\uc9c1\uc77c \ub54c, (\u03b8 = 90\u00b0) \uc77c\uc740 0\uc774 \ub429\ub2c8\ub2e4.<\/p>\n

\uc77c\uc758 \ub2e8\uc704\ub294 \uc904(Joule, J)\uc774\uba70, 1J\ub294 1N\uc758 \ud798\uc774 \ubb3c\uccb4\ub97c 1m \uc774\ub3d9\uc2dc\ud0ac \ub54c \uc218\ud589\ub418\ub294 \uc77c\uc758 \uc591\uc785\ub2c8\ub2e4.<\/p>\n<\/section>\n

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3. \uc5d0\ub108\uc9c0\uc758 \uc815\uc758<\/h2>\n

\uc5d0\ub108\uc9c0\ub294 \uc77c\uc744 \ud560 \uc218 \uc788\ub294 \ub2a5\ub825\uc73c\ub85c \uc815\uc758\ub429\ub2c8\ub2e4. \uc5d0\ub108\uc9c0\ub294 \uc5ec\ub7ec \ud615\ud0dc\ub85c \uc874\uc7ac\ud558\uba70, \ud06c\uac8c \uc6b4\ub3d9 \uc5d0\ub108\uc9c0\uc640 \uc704\uce58 \uc5d0\ub108\uc9c0\ub85c \ub098\ub20c \uc218 \uc788\uc2b5\ub2c8\ub2e4. <\/p>\n

\uc5d0\ub108\uc9c0\ub294 \ubcf4\uc874\ud560 \uc218 \uc788\uc73c\uba70, \ubb3c\ub9ac\uc801 \uc2dc\uc2a4\ud15c\uc5d0\uc11c \uc5d0\ub108\uc9c0\ub294 \uc11c\ub85c \ub2e4\ub978 \ud615\ud0dc\ub85c \ubcc0\ud658\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \uc6b4\ub3d9 \uc911\uc778 \ubb3c\uccb4\uc758 \uc6b4\ub3d9 \uc5d0\ub108\uc9c0\ub294 \uc7a5\uc560\ubb3c\uc5d0 \ubd80\ub52a\ud600 \ubcc0\ud615\ub418\uac70\ub098 \uc5f4\ub85c \ubcc0\ud658\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<\/section>\n

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4. \uc6b4\ub3d9 \uc5d0\ub108\uc9c0<\/h2>\n

\uc6b4\ub3d9 \uc5d0\ub108\uc9c0\ub294 \ubb3c\uccb4\uac00 \uc6c0\uc9c1\uc77c \ub54c \uac00\uc9c0\uace0 \uc788\ub294 \uc5d0\ub108\uc9c0\uc785\ub2c8\ub2e4. \uc6b4\ub3d9 \uc5d0\ub108\uc9c0\ub294 \ub2e4\uc74c\uacfc \uac19\uc774 \uc815\uc758\ub429\ub2c8\ub2e4:<\/p>\n

\n\uc6b4\ub3d9 \uc5d0\ub108\uc9c0 (KE) = (1\/2)mv\u00b2<\/strong>\n<\/p>\n

\uc5ec\uae30\uc11c m<\/strong>\uc740 \ubb3c\uccb4\uc758 \uc9c8\ub7c9, v<\/strong>\ub294 \ubb3c\uccb4\uc758 \uc18d\ub3c4\uc785\ub2c8\ub2e4. \uc774 \uacf5\uc2dd\uc740 \ubb3c\uccb4\uac00 \ub354 \ube60\ub974\uac8c \uc6c0\uc9c1\uc77c\uc218\ub85d \ub354 \ud070 \uc6b4\ub3d9 \uc5d0\ub108\uc9c0\ub97c \uac00\uc9c0\uba70, \uc9c8\ub7c9\uc774 \ud074\uc218\ub85d \uadf8 \uc5d0\ub108\uc9c0\uac00 \uc99d\uac00\ud55c\ub2e4\ub294 \uac83\uc744 \ubcf4\uc5ec\uc90d\ub2c8\ub2e4.<\/p>\n

\uc6b4\ub3d9 \uc5d0\ub108\uc9c0\ub294 \uc18d\ub3c4\uc758 \uc81c\uacf1\uc5d0 \ube44\ub840\ud558\ubbc0\ub85c, \ubb3c\uccb4\uc758 \uc18d\ub3c4\uac00 \ub450 \ubc30\uac00 \ub418\uba74 \uc6b4\ub3d9 \uc5d0\ub108\uc9c0\ub294 \ub124 \ubc30\uac00 \ub429\ub2c8\ub2e4. \uc774\ub294 \ubb3c\uccb4\uc758 \uc6b4\ub3d9 \uc0c1\ud0dc\uac00 \uc5d0\ub108\uc9c0\uc758 \ubcc0\ud654\ub97c \uc774\ud574\ud558\ub294 \ub370 \uc911\uc694\ud55c \ud3ec\uc778\ud2b8\uc785\ub2c8\ub2e4.<\/p>\n<\/section>\n

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5. \uc77c-\uc5d0\ub108\uc9c0 \uc815\ub9ac<\/h2>\n

\uc77c-\uc5d0\ub108\uc9c0 \uc815\ub9ac\ub294 \ubb3c\uccb4\uc5d0 \ub300\ud574 \uc218\ud589\ub41c \uc77c\uc774 \ubb3c\uccb4\uc758 \uc6b4\ub3d9 \uc5d0\ub108\uc9c0\ub97c \uc5b4\ub5bb\uac8c \ubcc0\ud654\uc2dc\ud0a4\ub294\uc9c0\ub97c \uc124\uba85\ud569\ub2c8\ub2e4. \uc774\ub294 \ub2e4\uc74c\uacfc \uac19\uc774 \ud45c\ud604\ub429\ub2c8\ub2e4:<\/p>\n

\nW = \u0394KE = KE_final – KE_initial<\/strong>\n<\/p>\n

\uc989, \uc218\ud589\ub41c \uc77c\uc740 \uc6b4\ub3d9 \uc5d0\ub108\uc9c0\uc758 \ubcc0\ud654\uc640 \uac19\uc2b5\ub2c8\ub2e4. \uc774\ub294 \uc5d0\ub108\uc9c0\uac00 \ubcf4\uc874\ub41c\ub2e4\ub294 \uc6d0\ub9ac\uc640 \ubc00\uc811\ud55c \uad00\ub828\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<\/section>\n

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6. \uc608\uc81c<\/h2>\n

\uc608\uc81c 1: \ubb3c\uccb4\uac00 \uacbd\uc0ac\uba74\uc744 \ub0b4\ub824\uc62c \ub54c\uc758 \uc6b4\ub3d9 \uc5d0\ub108\uc9c0<\/h3>\n

\uc9c8\ub7c9\uc774 5kg\uc778 \ubb3c\uccb4\uac00 \uc815\uc9c0 \uc0c1\ud0dc\uc5d0\uc11c \uacbd\uc0ac\uba74\uc744 \ub0b4\ub824\uc640 \ucd5c\ud558\ub2e8\uc5d0\uc11c\uc758 \uc18d\ub3c4\uac00 10m\/s\uc77c \uacbd\uc6b0, \uadf8 \ubb3c\uccb4\uc758 \uc6b4\ub3d9 \uc5d0\ub108\uc9c0\ub294 \ub2e4\uc74c\uacfc \uac19\uc774 \uacc4\uc0b0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n

\nKE = (1\/2)mv\u00b2 = (1\/2) \u00d7 5kg \u00d7 (10m\/s)\u00b2 = 250J<\/strong>\n<\/p>\n

\uc608\uc81c 2: \uc77c\uc744 \uc774\uc6a9\ud55c \uc6b4\ub3d9 \uc5d0\ub108\uc9c0\uc758 \ubcc0\ud654\ub97c \ub2e4\ub8e8\ub294 \ubb38\uc81c<\/h3>\n

\uc774\uc81c \uc9c8\ub7c9\uc774 3kg\uc778 \ubb3c\uccb4\uc5d0 15J\uc758 \uc77c\uc744 \uacf5\uae09\ud558\uc5ec \uc6b4\ub3d9 \uc5d0\ub108\uc9c0\ub97c \uc99d\uac00\uc2dc\ud0b5\ub2c8\ub2e4. \ucd08\uae30 \uc6b4\ub3d9 \uc5d0\ub108\uc9c0\uac00 5J\uc77c \ub54c, \ucd5c\uc885 \uc6b4\ub3d9 \uc5d0\ub108\uc9c0\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\n

\nKE_final = KE_initial + W = 5J + 15J = 20J<\/strong>\n<\/p>\n<\/section>\n

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7. \uacb0\ub860<\/h2>\n

\uc77c\uacfc \uc5d0\ub108\uc9c0 \ubc95\uce59\uc740 \ubb3c\ub9ac\ud559\uc758 \uae30\ucd08 \uc6d0\ub9ac \uc911 \ud558\ub098\ub85c, \uc6b4\ub3d9 \uc5d0\ub108\uc9c0\ub97c \ud3ec\ud568\ud55c \ub2e4\uc591\ud55c \ud604\uc0c1\uc744 \uc124\uba85\ud558\ub294 \ub370 \ud070 \ub3c4\uc6c0\uc744 \uc90d\ub2c8\ub2e4. \uc774\ub97c \ud1b5\ud574 \uc6b0\ub9ac\ub294 \ubb3c\ub9ac\uc801 \uc2dc\uc2a4\ud15c\uc744 \ubcf4\ub2e4 \uae4a\uc774 \uc774\ud574\ud558\uace0 \uc608\uce21\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\uc81c \uc77c\uacfc \uc5d0\ub108\uc9c0, \uadf8\ub9ac\uace0 \uc6b4\ub3d9 \uc5d0\ub108\uc9c0\uc758 \uac1c\ub150\uc744 \uc798 \uc774\ud574\ud588\ub2e4\uba74, \uc774 \uc9c0\uc2dd\uc744 \ubc14\ud0d5\uc73c\ub85c \ub354 \ubcf5\uc7a1\ud55c \ubb3c\ub9ac \ud604\uc0c1\uc5d0 \ub3c4\uc804\ud574 \ubcfc \uc900\ube44\uac00 \ub418\uc168\uc744 \uac83\uc785\ub2c8\ub2e4. \ubb3c\ub9ac\ud559\uc740 \uc0ac\uc2e4\uacfc \uc6d0\ub9ac\ub85c \uac00\ub4dd \ucc28 \uc788\uc73c\uba70, \uc774\ub97c \ud1b5\ud574 \uc6b0\ub9ac\ub294 \uc138\uc0c1\uacfc \ubb3c\uccb4\uac04\uc758 \uad00\uacc4\ub97c \ud0d0\uad6c\ud558\uace0 \uc774\ud574\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<\/section>\n