TY - BOOK TI - Nammude sahityakaranmar - III U1 - 894.812 09B PY - 1955/// CY - Kottayam PB - National Book Stall KW - GeneralFORCES AT A POINT, PARALLEL FORCES ABND MOMENTS, COUPLES, EQUILIBRIUM OF COPLANAR FORCES, CENTRE OF GRAVITY, FRICTION, VIRTUAL WORK, SIMPLE MACHNICS ER -