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JEE-PhysicsFrom the circular disc of radius 4R two small disc of radius R are cut off. The centre of masnew structure will be4.(B) +J3R(C)(1 J)14(D) of these

Answer»

The question can be done by options only..as when 1 disc is cut from +y side... the com will shift to -y (heavy mass)

and when again 1 disc is cut from +x, the com will shift to -x (heavy mass)

so, all together.. the CoM will shift to (-x,-y)

so, option 3 is matching..here only.



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