Two masses over a heavy pulley: acceleration or the pulley's moment of inertia

1. A.
   $\frac{(M - m)g}{\left\lbrack \left( \frac{13}{6} \right)M + m \right\rbrack}$
2. B.
   $\frac{(M - m)g}{M + m}$
3. C.
   $\frac{(M - m)g}{\left\lbrack \left( \frac{8}{3} \right)M + m \right\rbrack}$
4. D.
   $\frac{(M - m)g}{2M + m}$

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1. A.
   $9.5 \times 10^{- 3}$
2. B.
   $4.75 \times 10^{- 3}$
3. C.
   $1.86 \times 10^{- 2}$
4. D.
   $8.3 \times 10^{- 3}$

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