As shown, a massless string is wrapped around a pulley of radius r and mass m. (Figure 1) The string’s other end is atta

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As shown, a massless string is wrapped around a pulley of
radius r and mass m. (Figure 1) The string’s other
end is attached to a block with mass mmm. The pulley can
rotate freely about its axis and its cylinder is uniform. Note that
the positive y direction is downward and that
counterclockwise moments are positive.
Find α, the magnitude of the pulley’s angular acceleration
as the block descends.

As Shown A Massless String Is Wrapped Around A Pulley Of Radius R And Mass M Figure 1 The String S Other End Is Atta 1 (16.73 KiB) Viewed 46 times

α =
m m y