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in the following question if we write torque equation as a function of rtheny(r)=mgror y=mxwhich is a straight line after the worm is at resty(R)=mgRy=constantThis way the answer should come as A. but torque is also=M.O.I*angular accelerationAt final point angular acceleration=0 ,therefore torque should be 0.therefore on second thinking the answer should be B.Can you please tell me where am I going wrong.

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Vishesh Mangla , 8 Years ago
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