Question: A frictionless pulley has the shape of a uniform solid disk of mass 250 kg and radius 10 cm A 100 kg stone is attached

A frictionless pulley has the shape of a uniform solid disk of mass 250 kg and radius 10 cm A 100 kg stone is attached to a very light wire that is wrapped around the rim of the pulley (the figure (Figure 1)), and the system is released from rest

pulley stone

A. How far must the stone fall so that the pulley has 4.70 j of kinetic energy? (m)

B. What percent of the total kinetic energy does the pulley have? (%)

pulley stone

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