Two masses,m1=18.0kg and m2=26.5kg,are connected by a rope t

Two masses,m1=18.0kg and m2=26.5kg,are connected by a rope that hangs over a pully.The pully is an uniform cylinder of radius 0.260m and mass 7.50kg.Initially,m1 is on the ground and m2 rests 3.00m above the ground.If the system is now released,use conservation of energy to determine the speed of m2 just before it strikes the ground.Assume the pully if frictionless.
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