Three objects with masses m1 = 6.0 kg, m2 = 10.0 kg, and m3 = 14.0 kg,
respectively, are attached by strings over frictionless pulleys, as
indicated in Figure . The horizontal surface is frictionless and the
system is released from rest. Using energy concepts, find the speed of
m3 after it moves down a distance of 6.0 m. find the V?


figure:    

       (m2=10 kg is on table connect by rope to m1 and m3)
               ---------------------------             

   m1=6 kg                                m3=14 kg
  (hangs from left side of table)        ( hangs from right side of table)