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JEE Main Physics question

PhysicsSystems of Particles and Rotational MotionJEE Main

A small disc of radius 2 cm is cut from a disc of radius 6 cm. If the distance between their centres is 3.2 cm, what is the shift in the centre of mass of the disc?

Answer: (A)

Solution

Let surface mass density be . Big disc mass , removed disc mass . Taking the big disc's centre as origin, the shift of the

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Question ID VK-158430