APFIVE Energy Conversion in a Rotating System
A small mass m is attached to a string wrapped around a uniform cylinder of mass M and radius R. As the mass falls from rest through height h, the cylinder rotates. What fraction of the gravitational potential energy is converted to rotational kinetic energy of the cylinder?
A
M/(m+M)
B
M/(2m+M)
C
m/(2m+M)
D
m/(m+M)
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