On a rotating disk put a block,on it from the above part put an identical block connected by a thread to axis of a disk.at what angular speed of rotation of a disk tje bottom block will slip out
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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 :

(1)2mg2m+M(2)2Mg2m+M(3)2mg2M+m(4)2Mg2M+m

(1)2mg2m+M(2)2Mg2m+M(3)2mg2M+m(4)2Mg2M+m
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