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+{
+ "metadata": {
+  "name": "chapter11.ipynb"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "heading",
+     "level": 1,
+     "metadata": {},
+     "source": [
+      "Chapter 11: Virtual Work"
+     ]
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 11.11-6, Page no 188"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "import math\n",
+      "\n",
+      "#Initilization of variables\n",
+      "N=100 #lb\n",
+      "mu=0.3 #coefficient of friction\n",
+      "l=5 #in compressed to length\n",
+      "\n",
+      "#Calculations\n",
+      "#Simplfying the calculations we obtain\n",
+      "M=8*(N+N*mu) #lb-in\n",
+      "\n",
+      "#Result\n",
+      "print'The Moment is',round(M,3),\"lb-in\"\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "The Moment is 1040.0 lb-in\n"
+       ]
+      }
+     ],
+     "prompt_number": 1
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 11.11-7, Page no 189"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "import math\n",
+      "\n",
+      "#Initilization of variables\n",
+      "m=10 #kg\n",
+      "g=9.81 # m/s**2\n",
+      "F=200 #N\n",
+      "l=3 #m\n",
+      "\n",
+      "#Calculations\n",
+      "#Applying Virtual work principle\n",
+      "By=m*g*0.5 #N\n",
+      "Bx=F*(2*3**-1) #N\n",
+      "#By equations of equilibrium\n",
+      "Ax=-Bx-F #N negative sign indictaes the LEFT orientation\n",
+      "Ay=m*g-By #N\n",
+      "\n",
+      "#Result\n",
+      "print'The values are'\n",
+      "print'Ax=',round(Ax),\"N to left\"\n",
+      "print'Ay=',round(Ay),\"N up\"\n",
+      "print'Bx=',round(Bx),\"N to right\"\n",
+      "print'By=',round(By),\"N up\""
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "The values are\n",
+        "Ax= -333.0 N to left\n",
+        "Ay= 49.0 N up\n",
+        "Bx= 133.0 N to right\n",
+        "By= 49.0 N up\n"
+       ]
+      }
+     ],
+     "prompt_number": 2
+    }
+   ],
+   "metadata": {}
+  }
+ ]
+}
+\ No newline at end of file