A string is wrapped around a uniform solid cylinder of radius r, as shown in (Figure 1). The cylinder can rotate freely about its axis. The loose end of the string is attached to a block. The block and cylinder each have mass m.

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Chapter12: Rotation I: Kinematics And Dynamics
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12.13 Please help me answer this physics question.

A string is wrapped around a uniform solid cylinder of radius r, as
shown in (Figure 1). The cylinder can rotate freely about its axis. The
loose end of the string is attached to a block. The block and cylinder
each have mass m.
Part A
Find the magnitude a of the angular acceleration of the cylinder as the block descends.
Express your answer in terms of the cylinder's radius r and the magnitude of the free-fall acceleration g.
a =
Figure
1 of 1
m.
Transcribed Image Text:A string is wrapped around a uniform solid cylinder of radius r, as shown in (Figure 1). The cylinder can rotate freely about its axis. The loose end of the string is attached to a block. The block and cylinder each have mass m. Part A Find the magnitude a of the angular acceleration of the cylinder as the block descends. Express your answer in terms of the cylinder's radius r and the magnitude of the free-fall acceleration g. a = Figure 1 of 1 m.
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