مشاهدة النسخة كاملة : help me help me
منالات العلم
2014-11-01, 15:38
http://2as.ency-education.com/uploads/1/0/9/0/1090282/5930180.jpg?600x338
ريحان المتفائلة
2014-11-01, 16:35
ارجوكم ساعدوني
لتمرين
جسم نقطي كتلته m=50g معلق بخيط مهمل الكتلة و عديم الإمتطاط طوله L=40cm نزيح الجسم عن وضع توازنه بزاوية α=60°عند الموضع Aثم نتركه بدون سرعة ابتدائية ليمر بالموضع B حيث يصنع زاوية β=30°مع الشاقول (أنظر الشكل المقابل جيدا )
1) باعتبار الاحتكاكات مهملة مثل القوى المطبقة على الجسم في الموضع A ؟ .
2) أحسب عمل كل قوة من القوى المطبقة على الجسم عندما ينتقل من الموضع Aإلى الموضع B ؟ .
3) باعتبار الجملة (الجسم ) حدد أشكال الطاقة التي تمتلكها الجملة عند المواضع A ، B ؟ .
4) مثل الحصيلة الطاقوية للجسم بين الموضعين A و B ، ثم اكتب معادلة إنحفاظ الطاقة ؟ .
5) أحسب سرعة الجسم عند الموضع B ؟ .
6) أحسب سرعة الجسم عند الموضع C ؟ .
7) عند مرور الجسم بالموضع C ينقطع الخيط فيواصل الجسم حركتـه بحركـة أفقيـة ، أحسب أقصى انضغاط للنابض علما أن ثابت مرونة النابض K=100N/m ؟ .
المعطيات: g=10N/Kg
http://www.djelfa.info/vb/data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAM4AAACdCAIAAAB zZ9DKAAAZC0lEQVR4nO2dbWxT1/nAL21TLi+zLw0hdwk1TjDE5IU4iSGGuomTEOrhhhg6hhtgWKUf vK0J1ijFQFcXqOQKKszUgDu6zVQT8qZ1Ml9WTy2rl1SbBUgzbG 2dqcscEOAx0V5UGl2iObr/D884/0ucGOf47SY5v0/Jte/xE99fzjn3OS+XEgiEnEDlOwDCTIGoNj5ut5vjuOTvcTqdSV51u Vw8z2OfPv0gqo2D0+l8qAdWq9Xr9WKXkPz0aQlRbSzEsyxBVHs A4ln2IKr9P8SzrEJU+x/Es2xDVBME4llOIKoRz3LETFeNeJYzZrRqxLNcMnNVI57lmBmqW k9PT3NzszMpWq22s7Nz3JdMJpNWq00swWg0Gu5TUlKiVqsNE+B 2u/P9HeSaGara+fPnk3vmdDr37Nkz0UsajcZoNCYeDwQCwfv87ne/C05MNBrN93eQa2aoamlCWkYMiGo4ENUwIKrhQFTDgKiGA1ENA6 IaDkQ1DIhqOBDVMCCq4UBUw4CohgNRDQOiGg5ENQyIajgQ1TAg quFgt9tn4CBmmhDVcIARz3xHMcUgquFAVMOAqIYDUQ0DohoORD UMiGo4ENUwIKrhQFTDgKiGA1ENA6IaDkQ1DIhqOBDVMCCq4UBU w4CohoNGo6Eo8tVNDvJ94aDX6ymKmoEL7NKBqIaD1WqlKIqmaY fD8dAtcwkAUQ2HrVu3UhRVUVFBURTLsmRCUSoQ1XBob2+nKMpo NHo8HoZhKIrS6XShUCjfcUkaohoO0IBSFOX3+zmOs9vt8KvFYo nFYvmOTqIQ1XBwuVyrV6+maVqtVsPDCSKRiNFohA7cQ59YMDMh quEDlZl4Om4gEFAqlRRFKZVKv9+fx9gkCFENH57nWZalaVrcaP I873K5oANnMBjC4XAeI5QURLW08Hg8FEXZbLYxx2OxmM1mgw6c 3W7PakLk66+/PnPmzAsvvGCxWF5++eVAIDAyMpK9j8OGqJYuMHIwbu0VDod1Oh 1FUQzDZHXZy8jIyM6dO2UyWX9/f/Y+JU2IajhEIpFgMAg/h0IhSHZM9Gafz8eyLEVRarU6EAhkI554PP7jH/+4sLDw888/z0b5GYGohgMkO9CvZrMZEh8TvZ/neafTSdM0ZOMyPqIVj8f37NlTWFgYiUQyW3IGIarhMEa1WCxG0 zTLsslzHLFYDKTM+IgWUW3aMkY1QRCcTidFUanMLAoGg9C9Ky4 ulslkGblFJapNWxJVGzfxkQSPx7No0SKKourq6tIf0SKqTVsSV RMEwe/3w9hUioUMDQ11dXVlZESLqDZtGVc1QRAgtZFim+jz+SiKEo9oO Z1OvBGtcVUbHR396KOPbt68iVFgNiCq4SBOdogJh8MURWk0msk WGAgE1Go19ohWPB7v7u5esGDB5cuX0cELFy7s379/eHh4sqVlCaJahoFBglRmsFmt1jFpNrwRrbt37/7qV79atmwZRVHLli1rbW1tbW1taGigabq3txfjT8gSRLUMk2Li QxAEq9WaWDWKR7RsNtt0muJLVMs8breboiiHw5HkPcmzuOFw2G Aw5GBEK5cQ1TIPz/NqtZqm6SQ+GY1Gs9mcvBy/35/tEa1cQlTDweVyGQyGJG+AxEcSmWKxWCq9sWyPaOUSohoOEyU7x EAKY9wbVZvN5vP5Uv+4WCxmsVim+hotohoOqagWDodpmh438WG 32zEaxFAoBCNaLMt6PJ7Jnp53iGo4pKKaMN6McEEQfD5fOisPP B4PdOCm3BotohoOKaoWi8VYlmVZFjV5kUiEZdlxW9XU4TjO4XB AB24KrdEiquGQomrC/cSH3W4XBCEUCsVisUz1tKLRaPojWrmEqIZD6qoJgqDRaGiaDof DGo0GnMsgaY5o5RKiWtYJBAIURTU1NXEcl6W6x+12S3+NFlEtF 5SVlSWfEZ4+HMeJR7Qk2IEjqmUXj8fj8XgGBgYg8ZHtHpWUR7S IatkiGo3GYjG32w39M4fDkZj4yBJ+vx8W2UtqRIuoli1YlnW5X OhXmBHOMExumjZYZI9GtKQwO5eohsO4d6Acx8HIJviUeHW9Xi9 KfOQGSY1oEdVwANWCwSDHceFwGBZKaTQaq9XK87zH45nooiZZC j8ut2/fPnfu3MWLF0dHR2/cuPHFF19gRBsKhWAmen5HtIhqOKANSn0+XygUglkekUjkodXG+ fPnKYpSqVSpfMqlS5caGhpef/31PXv2vPfeexs3bnz22WexY/Z6vTCipdFo8jKiRVTDYVIpXDHBYBDtAZj8ncPDw5s2bTIajd98 881XX33V3d1dWlr6k5/8BCve/5HfES2iGg7YqrlcLoqiHn30UaVSmTzxcfXq1fLy8u7u7ng8Lgj C22+/TdP0+++/jxmxiGg0ihbZ53JEi6iGA55qcBNKUdSOHTsoihLfnybyxRdfFB cX79+/H1R75513SkpKMrj7SzAYhBEtlmVzM6JFVMPhobNwxwWG3iGR+9 Cl8FevXl26dKndbo/H4//973937dq1Zs2ar776Kr3AxwkpZyNaRLUcEQqFoJMEVQjMCLdar RO9f3h4ePPmzR0dHcPDw9euXVOr1XV1dVeuXMl4YOJto7M6okV UywWRSAQqD3FSDUaQktQlly5dWrVq1eHDh7u6urZt2+Z2u4uLi 7MXYbZHtIhqWcfn80F9NmZVSypL4YeHhy9dujQ4ODg6OjoyMvL Pf/4zq6FmdUSLqJZFIpEI3OtB25R4rwdzMSa1pCXbiLeNxhjRunHj xtGjR8fdvYGohsNEe3YggsEgeowGTdMT7asQi8UYhkllKXyOic ViY56jBZlqmIPpcDgmCvj06dNFRUV/+ctfEl8iquEwbrIjFosFAgGbzQYZDcBqtSZfvAm3pdJ8uiga0W IYpqysrK2traurq7OzU6PRmM3mRNs4jvvOd74za9YsuHEe8ypR DQdQzel0OhwOg8FgMBhg8iNCqVTa7fZUVgijpfASnMwIeDyego KCxsbGp0UoFIrEf48PP/zwRz/60YYNG5YuXZr4txPVcECNyxi9jEaj0+mcbILqoUvh84vf7+/o6Jj/IHPnzh1zQ3Pv3j273f7xxx//5je/mTNnTuImSEQ1HEA1t9sdCASCwSBM8UinQLh7kOa6TrfbPXv2bO ZB5HI5wzDit12+fPnFF1/8+uuvb926VV9fr9frxySciWo4YI+BTkQkEploKXzegR5b84NUV VWJq+F4PH7kyJE333zz888//+yzz3p6eubOnfvBBx+IyyGq4ZBx1YT7S+GluUOC2WzWarXb72M 2mxcsWCDOg1y/fr2jo2Pv3r2vvvrqq6++unv3brlcvmPHjnv37qH3ENVweGiyAw OO42ApvNQSH4IgcBxnsVgKCwsrKytLSkoYhhnz53u93jfffHN0 dBR+HRkZ+f73v8+y7N/+9jf0HqKahICHo+VyRvikCIfDHo8nGAyO+We4ffv2li1bxtwMn Tt3jqbpffv2oawHUU1awFJ4Kaw6SZGrV6/u3Llz/vz5b7zxxn/+8x84eOvWrVdeeaWgoGDevHmHDx+Gg0Q1aQHTdCWb+EgHoprkg MSHdNZvZgqiGg54UyNTBPYIz8FS+BxDVMMhG8kOMblcCp8ziGo 4ZFs1mBHOsqxkB0YxIKrhkIpqw8PDd+7cwf4IeAKVZBMfGBDVc EiuWjQa/e53v7tly5atW7c2NTWNO3krFdAegLhhSguiGg5JVIPVTRaLhef 5kZGRF1988amnnvryyy8xPgVmhBuNxvSClQpENRySqHb79u3Vq 1e/9tprMEpz9OjRsrKyoaGhdD5I4juPpghRLcPEYrGamprDhw+Pjo 7CsxOfffbZu3fvYpdG07RarZ4GiQ+iWoa5efNmVVXV66+/furUqU2bNq1du1b8jE4MYO+FaZD4IKplGFDt8OHDd+7cGRwc7O rqMplMt27dwi6Q53mlUinlGeEpQlTLMEg16Kv96U9/kslkR48eRRNsMIAZ4TabLXNh5oHMqxYOh48fP57xYqcKY1S7fv 368uXLt2/fPjIykk6x8DSMKZ34yIxqoVDI5XKZzWaGYSoqKrKaSZcCSe5Ax 6h28+bNFStW9PT0JC5WmxSQ+NDpdOkUkl/ScgK2LqdpurKyUq/X19XVzZ49u6amhqh28OBBUK2vr2/JkiV//OMf0/9QmBE+dRMfaTlx8eLFyspKmqZ1Ol1nZ6fJZKqoqGAY5pFHHslU fNIkuWqVlZUNDQ1vvPHGiRMnmpqaTp06lWaVBqCHo03RxEdaqg 0MDLS3t7MsC0sgzWbz008/zTDMo48+mqn4pMlDa7VDhw4NDg5euHAhnWHQRKS8FP6hpKXa0N BQZ2dnQ0MDRVHV1dU6nW7lypUURc3kWg3uA44ePZqNz+V5HgZG p2LiIy3VPvnkk8bGxiVLlshksvr6+sbGRoVCMcMb0IGBgdLS0l/84hdZ+mh4OJrFYslS+dkjXdW0Wu3ChQtnWgOaZBbujRs3Tp069 a9//St7nw4zwqdc4iNjDahWq33mmWfa29tramqmvWr5RcpL4ZOQlmp XrlwxGAz19fUwJNzS0qLX60tKSohq2QYSHxNt2yZN0r0DNZvNr a2txcXFSqVyzZo1jY2NixcvJqplGzQjfAolPtLNq2m12traWpl MVlNTYzKZnnvuOZ1O99hjj2UqPsJEwFJ4h8OR70BSJS3VLly48 Nxzz5lMppqaGplMVltbq9VqVSrVtK/VsrFnBwaQ+Ehlw0ApkJZqfX19Wq1Wq9WWlJQoFIrW1laTybR27 dppX6tle8VUioRCIVgKH41GE7fSkBppfV+XL19uampqbm5eunS pXC5fuXJlc3PzypUriWo5o62tjaIolmVhMDrJhsh5J13V1q1b1 9LSolarGYZ5+umnTSaT0WgsKCjIVHzSRCKqcRynUqkef/zxdfcpLy+XbHY3re8rFAq1traazeaWlhaGYcrLy5uamvR6/SOPPHLgwAGVSiXetjMYDJaWlooTj9FoVKVSHThwAB3heX7jxo2 NjY3if02fz6dQKMQ9knA4rFAoTp8+jY5wHKdWq/fs2SMOb9u2bcuXLx8TA8uy4u0wotHo4sWLjxw5Io5Br9e3tLSI Yzh9+nRJSQmKQSKqORwOl8tV9iBz5syR5n4faX1fwWBQo9EYDI bGxka5XA6qNTY2zpo1S6PReL1e8X8Yy7IXL15kWRYdsVgsXq9X/CRUt9tts9nsdjt6qhxscPfRRx+Jp2ppNJq+vj7x4m/40o1GI/qWA4GA0WiEAuEIzJy+cuWKOEdgNBr9fr84Bo/HMyYGmFLR19eHYpCIahqNBuaxjUGaC5XTVU2n05lMptbWVoVCo VKp1q1bBzvXezwenucZhoGLGgwGYSTHYDDAvRt6FS4tFAjfHWy +Cke8Xi8880upVEKlEg6HIVEOesHb4FX0ZkEQrFar1+sFUyEGv 98Pm0nBS8J9h4T7esGJEGEkElGr1XDE5XJBTgHFIBHVDAaDUqm sepCioiJpTv1IV7XS0tI1a9bo9frFixezLNve3i4eodPpdFBbo KuF/EA+oR84joNNo3mep2kaPsJms8H2sBaLBR6Q43a74b/W5/NBrYmMEfuhVqthQzzQVxAEu90O646QWEg+pK8gCDRNg5oMw0Dj azabYUIiikEiyQ74KjY8iEwmk+bwaLqzcCsqKkwmU2dnp06ng+ m48PwOuFqJoiA/ent74Xojw8SVGRIlUVZUJvIDVZnCfVHEsqKPRs0r+iBUJnq/WFb00SgY9H6JwPO8wWDQ6/VWq9VqtXZ1dZWVlTU0NOQ7rvFJV7XZs2fX1tbqdDqVSkXT9OrV q9vb21HjgmogdLWQHzab7dixY/A2qD/EzR+qSFAdg2og1AQjR8UnJjbBTqcTGhTU/KETUUuKXkX/CeJX0Z+DYpAOHMdBa84wzOOPP569Xd/SJ90GFDWaLS0tMB23trYWXZvEnlY0GlUqlcJ4lxl5KYx3mVHVh RpE9KpYNRBRXM+hYlGDiE5EQqNixUVBg4u8RDGEQiGr1WowGOx 2u3SmKEp/+9x0VYP5t0899VRdXZ1MJquqqlq7dm1iNYAuM7py4ssMqqHqRx B16tFlRtUhsla4b4z4xETVkD3ijjzEgypIdKJYNSgW/W/A36tSqXQ6ndfrDQaDbrc7G8/NnK5kQLXa2lqTydTe3r5s2bJFixYtX74cXdTe3t7NmzcLgiCXy 9FZCoVCEISKiorz58/DkcrKyqGhoeeff767uxuObNmy5eTJk//4xz9KS0vhyNDQUGVlpSAILMui3VagKPGJmzdv7u3t9fv9NTU1c OTdd98F3VEMHMdVVlZyHFdXV4eexanX68+fP3/kyJFnnnkGjjgcju7ubnEM77zzzvz589tFNDc3azQa6dRtUibdv hrLsuXl5Xq9Xq/Xl5eXsyyr1WqRauh+E/XVUCWBeveCIECGTJxxQH15VBTqfqHe+rh9NagOxXeUqFiUh0N9 f3HyDBpQcW8MghffYTQ3N9fW1qoeZMGCBagQQhLSVW3RokVKpR LS69BL02g0yI/Euz/IrArj3f2hlwSRT6i5RB12VCaST9xcwonilhfpjspEH/TWW2+h3iHcf4gdRR+EHIUKOxEket6Jx+MffvhhT0/P1q1bn3/++RdeeGHXrl0HDhzo7+/PyALBdMhAA1pVVdXa2tra2lpdXU1RFCyaGpOqQNcb1THoeqM6B qXHBNHVRY6iDhlyFFVm456IfkDGoHo0MQZU14pTvih4FMOKFSs sFsuKByksLJRarfbzn/+8oKAA/tg7d+789Kc/lcvlNpvtm2++yWNU6Y6BqtVqlmX1en1bW1t1dTVN03BbYLfbxT UE+hndP8IwUSwWQ5lVQRDMZvN7770nbsVQZYaa4FgsplQqeZ4X 31iADeIToVj05uQxiBNmUKw4eCiW5/lvf/vba9euXb9+vfE+zc3NMplMan21c+fOzZ0795e//CX8Go/HX3nllXnz5v3hD3/IY1TpTo1cvXo1NJptbW2QxYU9O5RK5UsvvSTeFcxsNh85ckSc+ HE6nQcPHoSLDUfefvtts9ksvjEEG7xerzihZTabe3t7Ua5VuG+ D+ESQ7NixY+IBQY1G8+6774pjcLvdL730kjgGkEyci4EYTpw4A Qd1Ol1tbW1LS0t1dbVcLpdgan6MaoIgHDt2rKCg4OzZs3mMKjM bKcByqTVr1sjl8srKSoqiDh06VFRUJJ4c0d/fzzBMf38/OsJxnEKh6OnpEZcJdxjiIydPniwqKhLnjQYGBhYuXHjmzBl0hO f5+vr69vZ28Ym7d+9evHixuMpJMYb29vb6+npx8GfOnFm4cOHA wIAgCOFw2Ol0ms1ml8uV5hNns8QY1QYHB+vq6ioqKrK6ZPChpL uMpampiWEYtVoN3TWFQvHkk09SFGUwGI4fP240Gn0+37///W+fz2cwGH7961/rdDqPxxOLxcLhsNVq3bdvn06nczqdkUgkEonAdkY7duyw2Wx+v 5/neTjx0KFDUBTHcX6/32g0njlzRqfTuVyuSCQSDocdDseOHTvMZrPdbodnDnu9XoPBsH v3bovF4vf70YknT57UaDQQAyRj9+3bZzAY4EHY0WjU4/EYDIauri6bzRYIBDiOgxhOnjwJGTWpNZeJwFPr6uvrd+7cuX79 +jlz5jz55JN9fX35jSrdxXl6vX7RokUVFRUbN27s7OyEe7RZs2 bBvzu0a/PmzbNYLNDQRCIRm81WXFwMs4wEQYjFYk6ns7S0VKVSoUmkHo/HaDTOmTMHnRgIBCwWyxNPPGE2m6GVjMViDoejqKioqqoKOuY8z 7vdbq1WO2/ePKvVim5dOzo65HI5OjEcDkMMoI4gCBzHOZ3OsrKykpISm80Gw Xs8npaWlm9961sohmAwaLVapb/ltrhWGx0d/fOf/1xTU/PEE0/8/ve/z2NUmVlyPHv27Orqar1eD5mOab+MReIk9tU++OCDuXPnrl+/Po83oZnZs4NhGOi7QLUhnTzTzCRRtb/+9a8MwzQ1NWV2Z6RJkZZq0LOR/kDvTOO3v/0tTdNINZ7n7Xb7Y489duLEiXS25E2T/E8lJWSQeDz+8ccfb9iwgaKo8vLyTZs2bdu2bdWqVStXrjx16tS 9e/fyGBtRjZAjiGqEHEFUmzSDg4P79+//3ve+t2vXrh/+8Idnz57t7e29du1avuOSOkS1STA6Onr27Nny8vKf/exn0O+5e/fua6+9VlxcLMHhKalBVJsE/f39hYWFhw4dEt/H8Tz/8ssvf/LJJ3kMbEpAVEsVnue3bt1aXFz86aefjnnp008//fvf/56XqKYQRLVUiUajS5YsWbVq1e3bt/Mdy5SEqJYqly5dYhimra0tvxMMpy5EtVS5fPnyggULWlpasJ8j O8MhqqUKPNFHrVbfuHEj37FMSYhqqRKPx/fu3UvT9Pvvvz/mpWvXrn322Wd5iWoKQVSbBNevX29sbKyoqBA/I3toaOj48eNffvllHgObEhDVJsfVq1e3b9/OMExHR8fevXt/8IMfHDx4UPrzcqUAUY2QI4hqhBzxf7XGsPMYCmDWAAAAAElFTk SuQmCC
ريحان المتفائلة
2014-11-01, 16:36
اسسسسفة
اسسسسسسسسسسسسسسسسفة
vBulletin® v3.8.10 Release Candidate 2, Copyright ©2000-2025, TranZ by Almuhajir