PROBLEM 10.77 A slender rod AB, of mass m, is attached to two blocks Aand Bwhich can move freely in the guides shown. Knowing that the spring is unstretched when 0y=, determine the value of ycorresponding to equilibrium when 12 kg,750 mm, and 900 N/m.mlk===SOLUTION Deflection of spring =s, where 22slyl=+−dsydyly=−Potential Energy: 21yVksW=−12dVdsksWdydy( )12dVykl y lWdy=+−−+112lkyW−+Equilibrium10:12dVlWydyk=+Now ()
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