{"id":46,"date":"2023-06-26T20:26:33","date_gmt":"2023-06-26T20:26:33","guid":{"rendered":"https:\/\/physigeek.com\/ko\/%e1%84%8e%e1%85%a6%e1%84%8c%e1%85%ae%e1%86%bc\/"},"modified":"2023-06-26T20:26:33","modified_gmt":"2023-06-26T20:26:33","slug":"%e1%84%8e%e1%85%a6%e1%84%8c%e1%85%ae%e1%86%bc","status":"publish","type":"post","link":"https:\/\/physigeek.com\/ko\/%e1%84%8e%e1%85%a6%e1%84%8c%e1%85%ae%e1%86%bc\/","title":{"rendered":"\ubb34\uac8c(\ubb3c\ub9ac\uc801)"},"content":{"rendered":"

\uc774 \uae30\uc0ac\uc5d0\uc11c\ub294 \ubb3c\ub9ac\ud559\uc5d0\uc11c \ubb34\uac8c\uc758 \uc758\ubbf8\ub97c \uc124\uba85\ud569\ub2c8\ub2e4. \uc5ec\uae30\uc11c\ub294 \ubb34\uac8c\uc758 \uc815\uc758, \ubb3c\uccb4\uc758 \ubb34\uac8c\ub97c \uacc4\uc0b0\ud558\ub294 \ubc29\ubc95, \ubb34\uac8c\uc640 \uc9c8\ub7c9\uc758 \ucc28\uc774\ub97c \ud655\uc778\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub9c8\uc9c0\ub9c9\uc73c\ub85c \ub2e8\uacc4\ubcc4 \ubcf4\ub514\ube4c\ub529 \uc6b4\ub3d9\uc744 \ud1b5\ud574 \ud6c8\ub828\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. <\/p>\n

<\/span> \ubb3c\ub9ac\ud559\uc5d0\uc11c \ubb34\uac8c\ub780 \ubb34\uc5c7\uc778\uac00?<\/span><\/h2>\n

\ubb3c\ub9ac\ud559\uc5d0\uc11c \uc2e0\uccb4\uc758 \ubb34\uac8c\ub294<\/strong> \ud574\ub2f9 \uc2e0\uccb4\uc5d0 \uc791\uc6a9\ud558\ub294 \uc911\ub825\uc785\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc73c\ub85c \ubb34\uac8c\ub77c\ub294 \uac1c\ub150\uc740 \uc9c0\uad6c\uac00 \ud2b9\uc815 \ubb3c\uccb4\uc5d0 \uac00\ud558\ub294 \uc911\ub825\uc744 \uc758\ubbf8\ud558\uc9c0\ub9cc, \ub2e4\ub978 \ud589\uc131\uc758 \uc911\ub825\uc744 \uc758\ubbf8\ud560 \uc218\ub3c4 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

\ub530\ub77c\uc11c \ubb34\uac8c\ub294 \ud798\uc774\ubbc0\ub85c \ubaa8\ub4c8, \ubc29\ud5a5, \ubc29\ud5a5 \ubc0f \uc801\uc6a9 \uc9c0\uc810\uc774 \uc788\ub294 \ubca1\ud130\uc785\ub2c8\ub2e4. \uc544\ub798\uc5d0\uc11c\ub294 \uc911\ub7c9 \uac12\uc744 \ucc3e\ub294 \ubc29\ubc95\uc744 \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \ub2e8, \ubc29\ud5a5\uc740 \ud56d\uc0c1 \uc218\uc9c1\uc774\uace0 \ubc29\ud5a5\uc740 \uc544\ub798\ucabd\uc774\uba70 \uc801\uc6a9 \uc9c0\uc810\uc740 \uc2e0\uccb4\uc758 \ubb34\uac8c \uc911\uc2ec\uc5d0 \ud574\ub2f9\ud569\ub2c8\ub2e4.<\/p>\n

\ubcf4\uc2dc\ub2e4\uc2dc\ud53c, \ubb3c\ub9ac\ud559\uc5d0\uc11c\ub294 \ubb34\uac8c\uc640 \uc9c8\ub7c9\uc744 \uad6c\ubcc4\ud574\uc57c \ud569\ub2c8\ub2e4<\/strong> . \uc65c\ub0d0\ud558\uba74 \uc774 \ub450 \uc6a9\uc5b4\uc758 \uc758\ubbf8\uac00 \uc77c\uc0c1 \uc0dd\ud65c\uc5d0\uc11c \uc798\ubabb \uc0ac\uc6a9\ub418\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4. \uc544\ub798\uc5d0\uc11c\ub294 \uccb4\uc911\uacfc \uc2e0\uccb4 \uc9c8\ub7c9\uc758 \ucc28\uc774\ub97c \uc790\uc138\ud788 \uc124\uba85\ud588\uc2b5\ub2c8\ub2e4.<\/p>\n

\ubb3c\ub9ac\ud559\uc5d0\uc11c \ubb34\uac8c\uc758 \uae30\ud638\ub294 \ubb38\uc790 P\uc774\ubbc0\ub85c \ubb3c\uccb4\uc758 \ubb34\uac8c\uc758 \ud798\uc744 \ub098\ud0c0\ub0b4\ub294 \ud654\uc0b4\ud45c \uc606\uc5d0 \ubb38\uc790 P\ub97c \ubc30\uce58\ud558\uc5ec \ud45c\uc2dc\ud569\ub2c8\ub2e4.<\/p>\n

\ud798\uc774\uae30 \ub54c\ubb38\uc5d0 \ubb34\uac8c\uc758 \uce21\uc815 \ub2e8\uc704\ub294 \ub274\ud134\uc774\uace0 \ubb38\uc790 N\uc73c\ub85c \ud45c\ud604\ub429\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, 50kg\uc778 \uc0ac\ub78c\uc758 \ubb34\uac8c\ub294 \uc57d 490N\uc785\ub2c8\ub2e4. <\/p>\n

<\/span> \ubb3c\ub9ac\ud559\uc5d0\uc11c \ubb34\uac8c\ub97c \uacc4\uc0b0\ud558\ub294 \ubc29\ubc95<\/span><\/h2>\n

\ubb3c\ub9ac\ud559\uc5d0\uc11c \ubb3c\uccb4\uc758 \ubb34\uac8c\ub97c \uad6c\ud558\ub294 \uacf5\uc2dd\uc740 \ubb3c\uccb4\uc758 \uc9c8\ub7c9\uc5d0 \uc911\ub825\uc744 \uac00\ud558\ub294 \ubcc4\uc758 \uc911\ub825\uc744 \uacf1\ud55c \uac83\uacfc \uac19\uc2b5\ub2c8\ub2e4. \uadf8\ub7ec\ubbc0\ub85c \ud589\uc131\uc774 \ubb3c\uccb4\ub97c \ub04c\uc5b4\ub2f9\uae30\ub294 \uc911\ub825\uc744 \uacc4\uc0b0<\/strong> \ud558\ub824\uba74 \ubb3c\uccb4\uc758 \uc9c8\ub7c9\uc5d0 \ud589\uc131\uc758 \uc911\ub825\uc744 \uacf1\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n

\ub530\ub77c\uc11c \ubb3c\uccb4\uc758 \ubb34\uac8c\ub97c \uacc4\uc0b0\ud558\ub294 \uacf5\uc2dd\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4. <\/p>\n

\n
\"\uccb4\uc911\"<\/figure>\n<\/div>\n

\uc9c0\uad6c\uc758 \uc911\ub825\uc740 9.81m\/ s2<\/sup> \ub77c\ub294 \uc810\uc744 \uba85\uc2ec\ud558\uc138\uc694. <\/p>\n

\n
\uccb4\uc911 \uacf5\uc2dd \ub370\ubaa8 \ubcf4\uae30<\/strong><\/div>\n<\/div>\n

\ubb34\uac8c\uc758 \ud798\uc5d0 \ub300\ud55c \uacf5\uc2dd\uc744 \uc124\uba85\ud558\uae30 \uc704\ud574 \uc5b4\ub5a4 \ubb3c\uccb4\uac00 \ub2e4\ub978 \ubb3c\uccb4\uc5d0 \uac00\ud558\ub294 \uc911\ub825\uc744 \uacc4\uc0b0\ud560 \uc218 \uc788\ub294 \ub300\uc218\uc801 \ud45c\ud604\ubd80\ud130 \uc2dc\uc791\ud558\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n

\n

\"F=G\\cdot<\/p>\n<\/p>\n

\uadf8\ub7ec\ub098 \uc911\ub825 \uacf5\uc2dd\uc740 \uc815\ud655\ud788 \ub9cc\uc720\uc911\ub825\uc0c1\uc218(G)\uc5d0 \ucc9c\uccb4\uc758 \uc9c8\ub7c9(M)\uc744 \uacf1\ud558\uace0 \ucc9c\uccb4 \uc911\uc2ec\uacfc \ud45c\uba74 \uc0ac\uc774\uc758 \uac70\ub9ac(r 2<\/sup> )\uc758 \uc81c\uacf1\uc73c\ub85c \ub098\ub208 \uac12\uc785\ub2c8\ub2e4.<\/p>\n

\n

\"g=\\cfrac{G\\cdot<\/p>\n<\/p>\n

\ub530\ub77c\uc11c \ud558\ub098\uc758 \ud45c\ud604\uc2dd\uc744 \ub2e4\ub978 \ud45c\ud604\uc2dd\uc73c\ub85c \ub300\uccb4\ud558\uba74 \ub2e4\uc74c\uacfc \uac19\uc740 \uac00\uc911\uce58 \uacf5\uc2dd\uc5d0 \ub3c4\ub2ec\ud569\ub2c8\ub2e4.<\/p>\n

\n

\"F=G\\cdot<\/p>\n<\/p>\n

\n

\"F=\\cfrac{G\\cdot<\/p>\n<\/p>\n

\n

\"F=g\\cdot<\/p>\n<\/p>\n

<\/div>\n

<\/span> \ubb34\uac8c\uc640 \uc9c8\ub7c9\uc758 \ucc28\uc774<\/span><\/h2>\n

\ubb34\uac8c\uc640 \uc9c8\ub7c9\uc740<\/strong> \ubb3c\ub9ac\ud559\uc5d0\uc11c \uc11c\ub85c \ub2e4\ub978 \ub450 \uac00\uc9c0 \uac1c\ub150\uc785\ub2c8\ub2e4. \uc9c8\ub7c9\uc740 \ubb3c\uccb4\uac00 \uac16\uace0 \uc788\ub294 \ubb3c\uc9c8\uc758 \uc591\uc73c\ub85c \ud0ac\ub85c\uadf8\ub7a8(kg)\uc73c\ub85c \uce21\uc815\ub418\uba70, \ubb34\uac8c\ub294 \ubcc4\uc774 \ubb3c\uccb4\uc5d0 \uac00\ud558\ub294 \uc911\ub825\uc774\uba70 \uce21\uc815 \ub2e8\uc704\ub294 \ub274\ud134(N)\uc785\ub2c8\ub2e4.<\/p>\n

\uc608\ub97c \ub4e4\uc5b4, \ubab8\ubb34\uac8c\uac00 70kg\uc778 \uc0ac\ub78c\uc758 \uc9c0\uad6c \ubb34\uac8c\ub294 686.7N\uc785\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \ub2ec\uc5d0 \uc788\ub294 \uc774 \uc0ac\ub78c\uc758 \uc9c8\ub7c9\uc740 \ub3d9\uc77c\ud558\uc9c0\ub9cc \ubb34\uac8c\ub294 113.4N\uc785\ub2c8\ub2e4.<\/p>\n

\uadf8\ub7ec\ubbc0\ub85c \uc6b0\ub9ac\uac00 \u201c\ub2f9\uc2e0\uc758 \ubab8\ubb34\uac8c\ub294 \uc5bc\ub9c8\uc785\ub2c8\uae4c?\u201d\ub77c\uace0 \ubb3c\uc744 \ub54c, \u00bb \ub204\uad70\uac00\uc758 \uc9c8\ub7c9\uc744 \uc54c\ub824\uba74 \uc2e4\uc81c\ub85c “\ub2f9\uc2e0\uc758 \uc9c8\ub7c9\uc740 \uc5bc\ub9c8\uc785\ub2c8\uae4c?”\ub77c\uace0 \ubb3c\uc5b4\ubd10\uc57c \ud569\ub2c8\ub2e4. \u00bb<\/p>\n

\ubb34\uac8c\uc640 \uc9c8\ub7c9\uc758 \ub610 \ub2e4\ub978 \ucc28\uc774\uc810\uc740 \uc18d\uc131\uc744 \uce21\uc815\ud558\ub294 \ub370 \ud544\uc694\ud55c \ub3c4\uad6c\uc785\ub2c8\ub2e4. \ubb34\uac8c\ub294 \ub3d9\ub825\uacc4\ub97c \uc0ac\uc6a9\ud558\uc5ec \uce21\uc815\ud558\uace0 \uc9c8\ub7c9\uc740 \uc800\uc6b8\uc744 \uc0ac\uc6a9\ud558\uc5ec \uce21\uc815\ud569\ub2c8\ub2e4.<\/p>\n

\ub610\ud55c \uc9c8\ub7c9\uc740 \ub2e8\uc21c\ud55c \uc22b\uc790\uc774\uc9c0\ub9cc \ubb34\uac8c\ub294 \ud798\uc774\uae30 \ub54c\ubb38\uc5d0 \ubca1\ud130\uc785\ub2c8\ub2e4. \ub530\ub77c\uc11c \ub2e4\ub978 \ubca1\ud130\uc640 \ub9c8\ucc2c\uac00\uc9c0\ub85c \ubb34\uac8c\uc5d0\ub3c4 \ubc29\ud5a5, \uc758\ubbf8, \ud06c\uae30 \ubc0f \uc801\uc6a9 \uc9c0\uc810\uc774 \uc788\uc2b5\ub2c8\ub2e4. <\/p>\n

<\/span>\ud574\uacb0\ub41c \uc6e8\uc774\ud2b8 \uc6b4\ub3d9<\/span><\/h2>\n

\uc5f0\uc2b5 1<\/h3>\n

\uc9c8\ub7c9\uc774 45kg\uc778 \ubb3c\uccb4\uc758 \uc9c0\uad6c\uc5d0\uc11c\uc758 \ubb34\uac8c\ub97c \uacc4\uc0b0\ud558\uc138\uc694. g=9.81 m\/s 2<\/sup> \uac12\uc744 \uc9c0\uad6c\uc758 \uc911\ub825\uc73c\ub85c \uc0ac\uc6a9\ud569\ub2c8\ub2e4. <\/p>\n

\n
\ud574\uacb0\ucc45\uc744 \ucc38\uc870\ud558\uc2ed\uc2dc\uc624<\/strong><\/div>\n<\/div>\n

\ubb3c\uccb4\uc758 \ubb34\uac8c\ub97c \uacb0\uc815\ud558\ub824\uba74 \ub2e4\uc74c\uacfc \uac19\uc740 \ud574\ub2f9 \uacf5\uc2dd\uc744 \uc801\uc6a9\ud558\uba74 \ub429\ub2c8\ub2e4.<\/p>\n

\n

\"P=m\\cdot<\/p>\n<\/p>\n

\uc774\uc81c \ubb3c\uccb4\uc758 \uc9c8\ub7c9\uacfc \uc9c0\uad6c\uc758 \uc911\ub825 \ub370\uc774\ud130\ub97c \uacf5\uc2dd\uc5d0 \ub300\uccb4\ud558\uace0 \ubb34\uac8c\ub97c \uacc4\uc0b0\ud569\ub2c8\ub2e4. <\/p>\n

\n

\"P=45\\cdot<\/p>\n<\/p>\n

<\/div>\n

\uc5f0\uc2b5 2<\/h3>\n

\uc9c0\uad6c\uc5d0\uc11c \ubb3c\uccb4\uc758 \ubb34\uac8c\ub294 650N\uc785\ub2c8\ub2e4. \ud654\uc131\uc5d0\uc11c \uc774 \ubb34\uac8c\uc758 \ub4f1\uac00 \uc9c8\ub7c9\uc740 \uc5bc\ub9c8\uc785\ub2c8\uae4c? \uc0ac\uc2e4: \ud654\uc131\uc758 \uc911\ub825\uc740 3721m\/s 2<\/sup> \uc785\ub2c8\ub2e4. <\/p>\n

\n
\ud574\uacb0\ucc45\uc744 \ucc38\uc870\ud558\uc2ed\uc2dc\uc624<\/strong><\/div>\n<\/div>\n

\ubb34\uac8c\uc640 \uad00\ub828\ub41c \uc774\ub7ec\ud55c \ubb3c\ub9ac\uc801 \ubb38\uc81c\ub97c \ud574\uacb0\ud558\ub824\uba74 \uc704\uc5d0\uc11c \uc124\uba85\ud55c \uacf5\uc2dd\uc744 \uc0ac\uc6a9\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n

\n

\"P=m\\cdot<\/p>\n<\/p>\n

\uc774 \uacbd\uc6b0, \uc6b0\ub9ac\ub294 \ubb34\uac8c\uc640 \uc911\ub825\uc758 \uac12\uc744 \uc54c\uace0 \uc788\uace0 \ubb3c\uccb4\uc758 \uc9c8\ub7c9\uc744 \uc54c\uace0 \uc2f6\uae30 \ub54c\ubb38\uc5d0 \uba3c\uc800 \ub2e4\uc74c \uacf5\uc2dd\uc5d0\uc11c \uc9c8\ub7c9\uc744 \uad6c\ud569\ub2c8\ub2e4.<\/p>\n

\n

\"m=\\cfrac{P}{g}\"<\/p>\n<\/p>\n

\uadf8\ub9ac\uace0 \ub9c8\uc9c0\ub9c9\uc73c\ub85c \ub370\uc774\ud130\ub97c \uacf5\uc2dd\uc5d0 \ub300\uccb4\ud558\uc5ec \ud654\uc131\uc758 650N \ubb34\uac8c\ub97c \uad6c\ud569\ub2c8\ub2e4. <\/p>\n

\n

\"m=\\cfrac{650}{3.721}=174,68<\/p>\n<\/p>\n

<\/div>\n

\uc5f0\uc2b5 3<\/h3>\n

\ub2e4\uc74c \uadf8\ub9bc\uc5d0 \uac01\ub3c4\uac00 \ud45c\uc2dc\ub41c \ub450 \uac1c\uc758 \ub85c\ud504\uc5d0 \ub9e4\ub2ec\ub824 \uc788\ub294 12kg\uc758 \uc9c8\ub7c9\uc744 \uac00\uc9c4 \uac15\uccb4\uac00 \uc8fc\uc5b4\uc84c\uc744 \ub54c \ubab8\uccb4\ub97c \ud3c9\ud615 \uc0c1\ud0dc\ub85c \uc720\uc9c0\ud558\uae30 \uc704\ud574 \uac01 \ub85c\ud504\uac00 \uac00\ud574\uc57c \ud558\ub294 \ud798\uc744 \uacc4\uc0b0\ud558\uc2ed\uc2dc\uc624. <\/p>\n

\n
\"\uccab<\/figure>\n<\/div>\n
\n
\ud574\uacb0\ucc45\uc744 \ucc38\uc870\ud558\uc2ed\uc2dc\uc624<\/strong><\/div>\n<\/div>\n

\uc774\ub7ec\ud55c \uc720\ud615\uc758 \ubb38\uc81c\ub97c \ud574\uacb0\ud558\uae30 \uc704\ud574 \uac00\uc7a5 \uba3c\uc800 \ud574\uc57c \ud560 \uc77c\uc740 \uadf8\ub9bc\uc758 \uc790\uc720\ubb3c\uccb4\ub3c4\ub97c \uadf8\ub9ac\ub294 \uac83\uc785\ub2c8\ub2e4. <\/p>\n

\n
\"\uade0\ud615\uc758<\/figure>\n<\/div>\n

\ub9e4\ub2ec\ub9b0 \ubb3c\uccb4\uc5d0 \uc791\uc6a9\ud558\ub294 \ud798\uc740 \uc2e4\uc81c\ub85c \uc138 \uac00\uc9c0 \ud798, \uc989 \ubb34\uac8c\uc758 \ud798 P\uc640 \uc904\uc758 \uc7a5\ub825 T 1<\/sub> \ubc0f T 2<\/sub> \ubfd0\uc785\ub2c8\ub2e4. T 1x<\/sub> , T 1y<\/sub> , T 2x<\/sub> \ubc0f T 2y<\/sub> \ub85c \ud45c\uc2dc\ub41c \ud798\uc740 \uac01\uac01 T 1<\/sub> \ubc0f T 2<\/sub> \uc758 \ubca1\ud130 \uad6c\uc131\uc694\uc18c\uc785\ub2c8\ub2e4.<\/p>\n

\ub530\ub77c\uc11c \uc6b0\ub9ac\ub294 \uc904\uc758 \uacbd\uc0ac\uac01\uc744 \uc54c\uace0 \uc788\uc73c\ubbc0\ub85c \uc7a5\ub825\uc758 \ubca1\ud130 \uad6c\uc131 \uc694\uc18c\uc5d0 \ub300\ud55c \ud45c\ud604\uc744 \ucc3e\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4. <\/p>\n

\n

\"<\/p>\n<\/p>\n

\n

\"<\/p>\n<\/p>\n

\n

\"<\/p>\n<\/p>\n

\n

\"<\/p>\n<\/p>\n

\ubc18\uba74\uc5d0 \uc911\ub825 \uacf5\uc2dd\uc744 \uc801\uc6a9\ud558\uc5ec \ubb34\uac8c\uc758 \ud798\uc744 \uacc4\uc0b0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

\n

\"P=m\\cdot<\/p>\n<\/p>\n

\ubb38\uc81c \uc124\uba85\uc740 \ubb3c\uccb4\uac00 \ud3c9\ud615 \uc0c1\ud0dc\uc5d0 \uc788\uc73c\ubbc0\ub85c \uc218\uc9c1 \ud798\uc758 \ud569\uacfc \uc218\ud3c9 \ud798\uc758 \ud569\uc774 0\uc774 \ub418\uc5b4\uc57c \ud568\uc744 \uc54c\ub824\uc90d\ub2c8\ub2e4. \ub530\ub77c\uc11c \ud798 \ubc29\uc815\uc2dd\uc744 \uc124\uc815\ud558\uace0 \uc774\ub97c 0\uc73c\ub85c \uc124\uc815\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. <\/p>\n

\n

\"-T_{1x}+T_{2x}=0\"<\/p>\n<\/p>\n

\n

\"T_{1y}+T_{2y}-P=0\"<\/p>\n<\/p>\n

\uc774\uc81c \uae34\uc7a5\uc758 \uad6c\uc131\uc694\uc18c\ub97c \uc774\uc804\uc5d0 \ubc1c\uacac\ub41c \ud45c\ud604\uc73c\ub85c \ub300\uccb4\ud569\ub2c8\ub2e4. <\/p>\n

\n

\"-T_1\\cdot\\text{cos}(20\u00ba)+T_2\\cdot<\/p>\n<\/p>\n

\n

\"T_1\\cdot<\/p>\n<\/p>\n

\uadf8\ub9ac\uace0 \ub9c8\uc9c0\ub9c9\uc73c\ub85c \ubc29\uc815\uc2dd \uc2dc\uc2a4\ud15c\uc744 \ud480\uc5b4 \ud798 T 1<\/sub> \uacfc T 2<\/sub> \uc758 \uac12\uc744 \uc5bb\uc2b5\ub2c8\ub2e4. <\/p>\n

\n

\"\\left.\\begin{array}{l}-T_1\\cdot<\/div>\n

Exercice 4<\/h3>\n

Comme le montre la figure suivante, deux objets sont reli\u00e9s par une corde et une poulie de masses n\u00e9gligeables. Si l’objet 2 a une masse de 7 kg et que l’inclinaison de la rampe est de 50\u00ba, calculez la masse de l’objet 1 pour que l’ensemble du syst\u00e8me soit dans des conditions d’\u00e9quilibre. Dans ce cas, la force de frottement peut \u00eatre n\u00e9glig\u00e9e. <\/p>\n

\n
"probl\u00e8me<\/figure>\n<\/div>\n
\n
Voir la solution<\/strong><\/div>\n<\/div>\n

Le corps 1 est sur une pente inclin\u00e9e, donc la premi\u00e8re chose \u00e0 faire est de vectoriser la force de son poids pour avoir les forces sur les axes de la pente : [latex]P_{1x}=P_1\\cdot \\text{sin}(\\alpha)” title=”Rendered by QuickLaTeX.com” height=”340″ width=”2918″ style=”vertical-align: 0px;”><\/p>\n<\/p>\n

\n

\"P_{1y}=P_1\\cdot<\/p>\n<\/p>\n

\ub530\ub77c\uc11c \uc804\uccb4 \uc2dc\uc2a4\ud15c\uc5d0 \uc791\uc6a9\ud558\ub294 \ud798\uc758 \uc9d1\ud569\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4. <\/p>\n

\n
\"\ubc88\uc5ed<\/figure>\n<\/div>\n

\ubb38\uc81c \uc124\uba85\uc740 \ud798\uc758 \uc2dc\uc2a4\ud15c\uc774 \ud3c9\ud615 \uc0c1\ud0dc\uc5d0 \uc788\uc73c\ubbc0\ub85c \ub450 \ubb3c\uccb4\uac00 \ud3c9\ud615 \uc0c1\ud0dc\uc5d0 \uc788\uc5b4\uc57c \ud568\uc744 \uc54c\ub824\uc90d\ub2c8\ub2e4. \uc774 \uc815\ubcf4\ub85c\ubd80\ud130 \uc6b0\ub9ac\ub294 \ub450 \ubb3c\uccb4\uc758 \ud3c9\ud615 \ubc29\uc815\uc2dd\uc744 \uc81c\uc548\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. <\/p>\n

\n

\"1\\<\/p>\n<\/p>\n

\n

\"P_1\\cdot<\/p>\n<\/p>\n

\uc774\uc81c \uc911\ub825 \uacf5\uc2dd\uc744 \uc801\uc6a9\ud558\uace0 \ubc29\uc815\uc2dd\uc744 \ub2e8\uc21c\ud654\ud569\ub2c8\ub2e4. <\/p>\n

\n

\"m_1\\cdot<\/p>\n<\/p>\n

\n

\"m_1<\/p>\n<\/p>\n

\ub9c8\uc9c0\ub9c9\uc73c\ub85c \ub370\uc774\ud130\ub97c \ub300\uccb4\ud558\uace0 \ubab8\uccb4 1\uc758 \uc9c8\ub7c9\uc744 \uad6c\ud569\ub2c8\ub2e4. <\/p>\n

\n

\"m_1<\/p>\n<\/p>\n

\n

\"m_1<\/p>\n<\/p>\n

\n

\"m_1=9,14<\/p>\n<\/p>\n

<\/div>\n","protected":false},"excerpt":{"rendered":"

\uc774 \uae30\uc0ac\uc5d0\uc11c\ub294 \ubb3c\ub9ac\ud559\uc5d0\uc11c \ubb34\uac8c\uc758 \uc758\ubbf8\ub97c \uc124\uba85\ud569\ub2c8\ub2e4. \uc5ec\uae30\uc11c\ub294 \ubb34\uac8c\uc758 \uc815\uc758, \ubb3c\uccb4\uc758 \ubb34\uac8c\ub97c \uacc4\uc0b0\ud558\ub294 \ubc29\ubc95, \ubb34\uac8c\uc640 \uc9c8\ub7c9\uc758 \ucc28\uc774\ub97c \ud655\uc778\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub9c8\uc9c0\ub9c9\uc73c\ub85c \ub2e8\uacc4\ubcc4 \ubcf4\ub514\ube4c\ub529 \uc6b4\ub3d9\uc744 \ud1b5\ud574 \ud6c8\ub828\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubb3c\ub9ac\ud559\uc5d0\uc11c \ubb34\uac8c\ub780 \ubb34\uc5c7\uc778\uac00? \ubb3c\ub9ac\ud559\uc5d0\uc11c \uc2e0\uccb4\uc758 \ubb34\uac8c\ub294 \ud574\ub2f9 \uc2e0\uccb4\uc5d0 \uc791\uc6a9\ud558\ub294 \uc911\ub825\uc785\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc73c\ub85c \ubb34\uac8c\ub77c\ub294 \uac1c\ub150\uc740 \uc9c0\uad6c\uac00 \ud2b9\uc815 \ubb3c\uccb4\uc5d0 \uac00\ud558\ub294 \uc911\ub825\uc744 \uc758\ubbf8\ud558\uc9c0\ub9cc, \ub2e4\ub978 \ud589\uc131\uc758 \uc911\ub825\uc744 \uc758\ubbf8\ud560 \uc218\ub3c4 \uc788\uc2b5\ub2c8\ub2e4. \ub530\ub77c\uc11c \ubb34\uac8c\ub294 \ud798\uc774\ubbc0\ub85c …<\/p>\n

\ubb34\uac8c(\ubb3c\ub9ac\uc801)<\/span> \ub354 \ubcf4\uae30 »<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"","footnotes":""},"categories":[5],"tags":[],"class_list":["post-46","post","type-post","status-publish","format-standard","hentry","category-5"],"yoast_head":"\n\u25b7 \ubb34\uac8c(\ubb3c\ub9ac): 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