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+//CHAPTER 8 ILLUSRTATION 3 PAGE NO 223
+//TITLE:BALANCING OF ROTATING MASSES
+pi=3.141
+clc
+clear
+mA=200//       mass of A in kg
+mB=300//       mass of B in kg
+mC=400//       mass of C in kg
+mD=200//       mass of D in kg
+rA=80//       radius of A in mm
+rB=70//       radius of B in mm
+rC=60//       radius of C in mm
+rD=80//       radius of D in mm
+rX=100//      radius of X in mm
+rY=100//     radius of Y in mm
+//=====================
+mY=7.3/.04//    mass of Y in kg by mearurement
+mX=35/.1//      mass of X in kg by mearurement
+thetaX=146//   in degrees by mesurement
+printf('mass of X=%.3f kg\n mass of Y=%.3f kg\n angle with mA=%.0f degrees',mX,mY,thetaX)