Write down the total energy (potential and elastic) of a hanging cable made up of three weightless springs connecting two objects of mass m1 and m2 the end points of the cable are (x0, , 1) and (x3, y3) = (3,1). the masses are located at (x1, y1) and (x2, y2). the springs have hooke's constants k01, k12, k23 and natural lengths l01, l12 and l23. the equilibrium position of the cable is obtained by minimising the total energy of the system. formulate the problem mathematically to solve for the equilibrium position (x, y).