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OpenStudy (anonymous):
the energy of a system is Kf + Uf +E(dissipated)=Ki +Ui + E(source), in the problem: A hockey puck of inertia 0.25kg travels at 10m/s to the right and collides with a lump of Silly Putty (inertia 0.1kg) at rest. The combined lump of puck and putty moves at 3.5m/s to the right. What is Uf, Ui and E(source)?
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