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.
Vishesh Mangla , 8 Years ago
Grade Select Grade