Class 11PhysicsSystem of Particles and Rotational MotionRotation Motion Basic, Motion of Connected Mass
Difficult$A$ uniform disc of radius $R$ and mass $M$ is free to rotate only about its axis. $A$ string is wrapped over its rim and a body of mass $m$ is tied to the free end of the string as shown in the figure. The body is released from rest. Then the acceleration of the body is
- A$\frac{2mg}{2m + M}$
- B$\frac{2Mg}{2m + M}$
- C$\frac{2mg}{2M + m}$
- D$\frac{2Mg}{2M + m}$
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