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Homework Statement
A 12.0kg box resting on a horizontal, frictionless surface is attached to a 5.00kgweight by a thin, light wire that passes without slippage over a frictionless pulley (the figure ). The pulley has the shape of a uniform solid disk of mass 1.70kg and diameter 0.600 m.
After the system is released, find the horizontal tension in the wire.
http://session.masteringphysics.com/problemAsset/1037926/6/YF-10-44.jpg
Homework Equations
The Attempt at a Solution
I'm thinking of approaching it as I would if the pulley was massless by setting m1a= Thorz and m2a=m2g-Tvert, but I don't know where the pulley would come in